[SATLUG] cd audio burning
herb cee
hc at lookcee.com
Fri Feb 8 16:19:42 CST 2008
Geoff wrote:
> herb cee wrote:
>>>>
>>>> Believe or not, most newer drives have problems burning at slow
>>>> speeds if they can at all go below 4x. wodim answered your question
>>>> right there, "when set to speed=0 it will burn at the slowest
>>>> possible speed that the drive supports".
>>>
>>> Ah, but it didn't! I -set- speed=0 in the command, and if you'll go
>>> back and re-read my message, you'll see where I said that the same
>>> amount of data was burned to the CD in half of the time as having
>>> the variable 'speed=1' set. Hence my confusion.
>>>
>>
>> According to the specs #1 will set record speed at 40x and your 2nd
>> burn set at #0 forced a burn at 48x:
>>
>> So it appears that 4x is the slowest that drive will turn so to get
>> the lowest speed I agree with your premise:
>>
>
> Good catch, Herb. And, that's exactly where I was going with this.
> My point of contention is, that setting "speed=8" seems to be in
> direct contradiction to setting 'speed=0' to get the slowest speed
> burn. What am I mis-reading?
>
> Well, I'm sitting here looking at a spindle of 48 blank CD-Rw's (out
> of 50)
> . I guess the only way to really know, is to take the same amount of
> data, and burn it at speed=8 and see if it slows down the burn time.
>
> What's the command to start a timer on a command, to see how long it
> takes? time?
>
>
> a quick review of 'man time' verified this to be accurate.
>
> And, here are the results:
>
> root at myserver Fri Feb 08 11:43:32
> /srv/www/htdocs/mp3/A/Allman Brothers/A Decade of Hits
> :> time wodim -v -pad speed=8 dev=/dev/cdrw -audio *.mp3
> wodim: No write mode specified.
> (*huh?*)
> wodim: Asuming -tao mode.
> wodim: Future versions of wodim may have different drive dependent
> defaults.
> TOC Type: 0 = CD-DA
> scsidev: '/dev/cdrw'
> devname: '/dev/cdrw'
> scsibus: -2 target: -2 lun: -2
> Linux sg driver version: 3.5.27
> Wodim version: 1.1.6
> SCSI buffer size: 64512
> Device type : Removable CD-ROM
> Version : 5
> Response Format: 2
> Capabilities :
> Vendor_info : 'DVDRW '
> Identification : '20X20X12X '
> Revision : '6A31'
> Device seems to be: Generic mmc2 DVD-R/DVD-RW.
> Current: 0x0009 (CD-R)
> Profile: 0x002B (DVD+R/DL)
> Profile: 0x001B (DVD+R)
> Profile: 0x001A (DVD+RW)
> Profile: 0x0016 (DVD-R/DL layer jump recording)
> Profile: 0x0015 (DVD-R/DL sequential recording)
> Profile: 0x0014 (DVD-RW sequential recording)
> Profile: 0x0013 (DVD-RW restricted overwrite)
> Profile: 0x0012 (DVD-RAM)
> Profile: 0x0011 (DVD-R sequential recording)
> Profile: 0x0010 (DVD-ROM)
> Profile: 0x000A (CD-RW)
> Profile: 0x0009 (CD-R) (current)
> Profile: 0x0008 (CD-ROM)
> Profile: 0x0002 (Removable disk)
> Using generic SCSI-3/mmc CD-R/CD-RW driver (mmc_cdr).
> Driver flags : MMC-3 SWABAUDIO BURNFREE FORCESPEED
> Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P
> RAW/R96R
> Drive buf size : 988416 = 965 KB
> Beginning DMA speed test. Set CDR_NODMATEST environment variable if
> device
> communication breaks or freezes immediately after that.
> FIFO size : 4194304 = 4096 KB
> Track 01: audio 2 MB (00:15.01) no preemp swab pad Track 02:
> audio 3 MB (00:21.45) no preemp swab pad Track 03: audio 2 MB
> (00:15.57) no preemp swab pad Track 04: audio 5 MB (00:30.13) no
> preemp swab pad Track 05: audio 4 MB (00:28.64) no preemp swab
> pad Track 06: audio 5 MB (00:30.90) no preemp swab pad Track
> 07: audio 1 MB (00:09.05) no preemp swab pad Track 08: audio
> 2 MB (00:15.85) no preemp swab pad Track 09: audio 2 MB
> (00:12.40) no preemp swab pad Track 10: audio 3 MB (00:20.60) no
> preemp swab pad Track 11: audio 3 MB (00:19.68) no preemp swab
> pad Track 12: audio 2 MB (00:17.04) no preemp swab pad Track
> 13: audio 3 MB (00:21.46) no preemp swab pad Track 14: audio
> 3 MB (00:17.87) no preemp swab pad Track 15: audio 3 MB
> (00:17.92) no preemp swab pad Track 16: audio 3 MB (00:22.12) no
> preemp swab pad Total size: 58 MB (05:45.88) = 25941 sectors
> Lout start: 58 MB (05:47/66) = 25941 sectors
> Current Secsize: 2048
> ATIP info from disk:
> Indicated writing power: 5
> Is not unrestricted
> Is not erasable
> Disk sub type: Medium Type A, low Beta category (A-) (2)
> ATIP start of lead in: -11634 (97:26/66)
> ATIP start of lead out: 359849 (79:59/74)
> Disk type: Short strategy type (Phthalocyanine or similar)
> Manuf. index: 3
> Manufacturer: CMC Magnetics Corporation
> Blocks total: 359849 Blocks current: 359849 Blocks remaining: 333908
> Forcespeed is OFF.
> Speed set to 2822 KB/s
> Starting to write CD/DVD at speed 16.0 in real TAO mode for single
> session.
> Last chance to quit, starting real write i 0 seconds. Operation starts.
> Waiting for reader process to fill input buffer ... input buffer ready.
> Performing OPC...
> Starting new track at sector: 0
> Track 01: 2 of 2 MB written (fifo 84%) [buf 98%] 18.7x.
> WARNING: padding up to secsize.
> Track 01: Total bytes read/written: 2649277/2650704 (1127 sectors).
> Starting new track at sector: 1279
> Track 02: 3 of 3 MB written (fifo 71%) [buf 98%] 19.6x.
> WARNING: padding up to secsize.
> Track 02: Total bytes read/written: 3784036/3784368 (1609 sectors).
> Starting new track at sector: 3040
> Track 03: 2 of 2 MB written (fifo 81%) [buf 98%] 19.2x.
> WARNING: padding up to secsize.
> Track 03: Total bytes read/written: 2747393/2749488 (1169 sectors).
> Starting new track at sector: 4361
> Track 04: 5 of 5 MB written (fifo 40%) [buf 98%] 19.7x.
> WARNING: padding up to secsize.
> Track 04: Total bytes read/written: 5315334/5315520 (2260 sectors).
> Starting new track at sector: 6773
> Track 05: 4 of 4 MB written (fifo 50%) [buf 98%] 19.4x.
> WARNING: padding up to secsize.
> Track 05: Total bytes read/written: 5052334/5054448 (2149 sectors).
> Starting new track at sector: 9074
> Track 06: 5 of 5 MB written (fifo 46%) [buf 98%] 20.5x.
> WARNING: padding up to secsize.
> Track 06: Total bytes read/written: 5451380/5451936 (2318 sectors).
> Starting new track at sector: 11544
> Track 07: 1 of 1 MB written (fifo 95%) [buf 98%] 4.7x.
> WARNING: padding up to secsize.
> Track 07: Total bytes read/written: 1597274/1599360 (680 sectors).
> Starting new track at sector: 12376
> Track 08: 2 of 2 MB written (fifo 76%) [buf 98%] 20.5x.
> WARNING: padding up to secsize.
> Track 08: Total bytes read/written: 2796608/2798880 (1190 sectors).
> Starting new track at sector: 13718
> Track 09: 2 of 2 MB written (fifo 79%) [buf 98%] 20.3x.
> WARNING: padding up to secsize.
> Track 09: Total bytes read/written: 2187850/2189712 (931 sectors).
> Starting new track at sector: 14801
> Track 10: 3 of 3 MB written (fifo 68%) [buf 98%] 21.2x.
> WARNING: padding up to secsize.
> Track 10: Total bytes read/written: 3634511/3636192 (1546 sectors).
> Starting new track at sector: 16499
> Track 11: 3 of 3 MB written (fifo 67%) [buf 98%] 21.2x.
> WARNING: padding up to secsize.
> Track 11: Total bytes read/written: 3471821/3473904 (1477 sectors).
> Starting new track at sector: 18128
> Track 12: 2 of 2 MB written (fifo 81%) [buf 98%] 20.7x.
> WARNING: padding up to secsize.
> Track 12: Total bytes read/written: 3006005/3008208 (1279 sectors).
> Starting new track at sector: 19559
> Track 13: 3 of 3 MB written (fifo 68%) [buf 98%] 21.8x.
> WARNING: padding up to secsize.
> Track 13: Total bytes read/written: 3786231/3786720 (1610 sectors).
> Starting new track at sector: 21321
> Track 14: 2 of 3 MB written (fifo 81%) [buf 98%] 21.3x.
> WARNING: padding up to secsize.
> Track 14: 3 of 3 MB written (fifo 68%) [buf 98%] 21.7x.
> Track 14: Total bytes read/written: 3153023/3154032 (1341 sectors).
> Starting new track at sector: 22814
> Track 15: 2 of 3 MB written (fifo 81%) [buf 90%] 20.2x.
> WARNING: padding up to secsize.
> Track 15: 3 of 3 MB written (fifo 68%) [buf 98%] 23.6x.
> Track 15: Total bytes read/written: 3162113/3163440 (1345 sectors).
> Starting new track at sector: 24311
> Track 16: 3 of 3 MB written (fifo 100%) [buf 98%] 22.5x.
> WARNING: padding up to secsize.
> Track 16: Total bytes read/written: 3902214/3904320 (1660 sectors).
> Writing time: 68.997s
> Average write speed 6.0x.
> Min drive buffer fill was 90%
> Fixating...
> Fixating time: 15.197s
> BURN-Free was never needed.
> wodim: fifo had 885 puts and 885 gets.
> wodim: fifo was 0 times empty and 47 times full, min fill was 37%.
>
> ***************
> * real 1m32.585s
> * user 0m0.076s
> * sys 0m0.400s
> ***************
>
> Now, to set it to speed=0...
>
> root at myserver Fri Feb 08 11:46:13
> /srv/www/htdocs/mp3/A/Allman Brothers/A Decade of Hits
> :> time wodim -v -pad speed=0 dev=/dev/cdrw -audio *.mp3 wodim: No
> write mode specified.
> wodim: Asuming -tao mode.
> wodim: Future versions of wodim may have different drive dependent
> defaults.
> TOC Type: 0 = CD-DA
> scsidev: '/dev/cdrw'
> devname: '/dev/cdrw'
> scsibus: -2 target: -2 lun: -2
> Linux sg driver version: 3.5.27
> Wodim version: 1.1.6
> SCSI buffer size: 64512
> Device type : Removable CD-ROM
> Version : 5
> Response Format: 2
> Capabilities :
> Vendor_info : 'DVDRW '
> Identification : '20X20X12X '
> Revision : '6A31'
> Device seems to be: Generic mmc2 DVD-R/DVD-RW.
> Current: 0x0009 (CD-R)
> Profile: 0x002B (DVD+R/DL)
> Profile: 0x001B (DVD+R)
> Profile: 0x001A (DVD+RW)
> Profile: 0x0016 (DVD-R/DL layer jump recording)
> Profile: 0x0015 (DVD-R/DL sequential recording)
> Profile: 0x0014 (DVD-RW sequential recording)
> Profile: 0x0013 (DVD-RW restricted overwrite)
> Profile: 0x0012 (DVD-RAM)
> Profile: 0x0011 (DVD-R sequential recording)
> Profile: 0x0010 (DVD-ROM)
> Profile: 0x000A (CD-RW)
> Profile: 0x0009 (CD-R) (current)
> Profile: 0x0008 (CD-ROM)
> Profile: 0x0002 (Removable disk)
> Using generic SCSI-3/mmc CD-R/CD-RW driver (mmc_cdr).
> Driver flags : MMC-3 SWABAUDIO BURNFREE FORCESPEED
> Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P
> RAW/R96R
> Drive buf size : 988416 = 965 KB
> Beginning DMA speed test. Set CDR_NODMATEST environment variable if
> device
> communication breaks or freezes immediately after that.
> FIFO size : 4194304 = 4096 KB
> Track 01: audio 2 MB (00:15.01) no preemp swab pad Track 02:
> audio 3 MB (00:21.45) no preemp swab pad Track 03: audio 2 MB
> (00:15.57) no preemp swab pad Track 04: audio 5 MB (00:30.13) no
> preemp swab pad Track 05: audio 4 MB (00:28.64) no preemp swab
> pad Track 06: audio 5 MB (00:30.90) no preemp swab pad Track
> 07: audio 1 MB (00:09.05) no preemp swab pad Track 08: audio
> 2 MB (00:15.85) no preemp swab pad Track 09: audio 2 MB
> (00:12.40) no preemp swab pad Track 10: audio 3 MB (00:20.60) no
> preemp swab pad Track 11: audio 3 MB (00:19.68) no preemp swab
> pad Track 12: audio 2 MB (00:17.04) no preemp swab pad Track
> 13: audio 3 MB (00:21.46) no preemp swab pad Track 14: audio
> 3 MB (00:17.87) no preemp swab pad Track 15: audio 3 MB
> (00:17.92) no preemp swab pad Track 16: audio 3 MB (00:22.12) no
> preemp swab pad Total size: 58 MB (05:45.88) = 25941 sectors
> Lout start: 58 MB (05:47/66) = 25941 sectors
> Current Secsize: 2048
> ATIP info from disk:
> Indicated writing power: 5
> Is not unrestricted
> Is not erasable
> Disk sub type: Medium Type A, high Beta category (A+) (3)
> ATIP start of lead in: -11634 (97:26/66)
> ATIP start of lead out: 359846 (79:59/71)
> Disk type: Short strategy type (Phthalocyanine or similar)
> Manuf. index: 3
> Manufacturer: CMC Magnetics Corporation
> Blocks total: 359846 Blocks current: 359846 Blocks remaining: 333905
> Forcespeed is OFF.
> Speed set to 8467 KB/s
> Starting to write CD/DVD at speed 48.0 in real TAO mode for single
> session.
> Last chance to quit, starting real write i 0 seconds. Operation starts.
> Waiting for reader process to fill input buffer ... input buffer ready.
> Performing OPC...
> Starting new track at sector: 0
> Track 01: 2 of 2 MB written (fifo 100%) [buf 98%] 21.7x.
> WARNING: padding up to secsize.
> Track 01: Total bytes read/written: 2649277/2650704 (1127 sectors).
> Starting new track at sector: 1279
> Track 02: 3 of 3 MB written (fifo 100%) [buf 98%] 22.9x.
> WARNING: padding up to secsize.
> Track 02: Total bytes read/written: 3784036/3784368 (1609 sectors).
> Starting new track at sector: 3040
> Track 03: 2 of 2 MB written (fifo 100%) [buf 98%] 22.4x.
> WARNING: padding up to secsize.
> Track 03: Total bytes read/written: 2747393/2749488 (1169 sectors).
> Starting new track at sector: 4361
> Track 04: 5 of 5 MB written (fifo 98%) [buf 98%] 23.4x.
> WARNING: padding up to secsize.
> Track 04: Total bytes read/written: 5315334/5315520 (2260 sectors).
> Starting new track at sector: 6773
> Track 05: 4 of 4 MB written (fifo 98%) [buf 98%] 22.8x.
> WARNING: padding up to secsize.
> Track 05: Total bytes read/written: 5052334/5054448 (2149 sectors).
> Starting new track at sector: 9074
> Track 06: 5 of 5 MB written (fifo 98%) [buf 98%] 24.2x.
> WARNING: padding up to secsize.
> Track 06: Total bytes read/written: 5451380/5451936 (2318 sectors).
> Starting new track at sector: 11544
> Track 07: 1 of 1 MB written (fifo 100%) [buf 98%] 4.4x.
> WARNING: padding up to secsize.
> Track 07: Total bytes read/written: 1597274/1599360 (680 sectors).
> Starting new track at sector: 12376
> Track 08: 2 of 2 MB written (fifo 98%) [buf 98%] 23.5x.
> WARNING: padding up to secsize.
> Track 08: Total bytes read/written: 2796608/2798880 (1190 sectors).
> Starting new track at sector: 13718
> Track 09: 2 of 2 MB written (fifo 100%) [buf 98%] 23.8x.
> WARNING: padding up to secsize.
> Track 09: Total bytes read/written: 2187850/2189712 (931 sectors).
> Starting new track at sector: 14801
> Track 10: 3 of 3 MB written (fifo 100%) [buf 98%] 24.6x.
> WARNING: padding up to secsize.
> Track 10: Total bytes read/written: 3634511/3636192 (1546 sectors).
> Starting new track at sector: 16499
> Track 11: 3 of 3 MB written (fifo 100%) [buf 98%] 24.6x.
> WARNING: padding up to secsize.
> Track 11: Total bytes read/written: 3471821/3473904 (1477 sectors).
> Starting new track at sector: 18128
> Track 12: 2 of 2 MB written (fifo 100%) [buf 98%] 24.2x.
> WARNING: padding up to secsize.
> Track 12: Total bytes read/written: 3006005/3008208 (1279 sectors).
> Starting new track at sector: 19559
> Track 13: 3 of 3 MB written (fifo 100%) [buf 98%] 25.0x.
> WARNING: padding up to secsize.
> Track 13: Total bytes read/written: 3786231/3786720 (1610 sectors).
> Starting new track at sector: 21321
> Track 14: 2 of 3 MB written (fifo 100%) [buf 98%] 24.6x.
> WARNING: padding up to secsize.
> Track 14: 3 of 3 MB written (fifo 100%) [buf 98%] 25.8x.
> Track 14: Total bytes read/written: 3153023/3154032 (1341 sectors).
> Starting new track at sector: 22814
> Track 15: 2 of 3 MB written (fifo 98%) [buf 98%] 25.0x.
> WARNING: padding up to secsize.
> Track 15: 3 of 3 MB written (fifo 100%) [buf 98%] 25.6x.
> Track 15: Total bytes read/written: 3162113/3163440 (1345 sectors).
> Starting new track at sector: 24311
> Track 16: 3 of 3 MB written (fifo 100%) [buf 95%] 25.4x.
> WARNING: padding up to secsize.
> Track 16: Total bytes read/written: 3902214/3904320 (1660 sectors).
> Writing time: 69.841s
> Average write speed 5.8x.
> Min drive buffer fill was 95%
> Fixating...
> Fixating time: 13.548s
> BURN-Free was never needed.
> wodim: fifo had 885 puts and 885 gets.
> wodim: fifo was 0 times empty and 478 times full, min fill was 89%.
>
> ***************
> * real 1m31.692s
> * user 0m0.060s
> * sys 0m0.380s
> ***************
>
> I don't see a helluva lot of difference. Anyone else?
Yeah look here: the forced speed was reset in both cases and the DMA
test set the speed
Forcespeed is OFF.
Speed set to 2822 KB/s
Starting to write CD/DVD at speed 16.0 in real TAO mode for single
session.
and
Forcespeed is OFF.
Speed set to 8467 KB/s
Starting to write CD/DVD at speed 48.0 in real TAO mode for single
session.
I have no idea how to cure this tho perhaps your command is too early in
the config sequence and is being reset by another line that needs to be
# out ... just guessing
Herb
>
>
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