Re: Speed problems with PX-716A
Roberto Sebastiano <robs@multiplayer.it> wrote:
> Il giorno sab, 29-01-2005 alle 17:42 +0100, Joerg Schilling ha scritto:
> > Roberto Sebastiano <robs@multiplayer.it> wrote:
>
> > > The Nec 3500 supports dvd-r writing up to 16x (16x, 13x, 12x, 8x, 6x,
> > > 4x, 2x)
> > >
> > > With growisofs the drives writes correctly at the selected speed (tryed
> > > 8x, 6x, 4x)
> >
> > Please prove this via a useful cdrecord -prcap output.
> >
> How can I prove this with -prcap if -prcap gives me the wrong values ?
Why should you get wrong values except when the drives firmware is broken?
> > > Write speed # 0: 8467 kB/s CLV/PCAV (CD 48x, DVD 6x)
> > > Write speed # 1: 7056 kB/s CLV/PCAV (CD 40x, DVD 5x)
> > > Write speed # 2: 5645 kB/s CLV/PCAV (CD 32x, DVD 4x)
> > > Write speed # 3: 4234 kB/s CLV/PCAV (CD 24x, DVD 3x)
> > > Write speed # 4: 2822 kB/s CLV/PCAV (CD 16x, DVD 2x)
> > > Write speed # 5: 1411 kB/s CLV/PCAV (CD 8x, DVD 1x)
> >
> > It is _extremely_ unlikely that you had a useful DVD medium
> > in the drive...
> >
> > Jörg
> >
>
> Yes, the drive was empty.
> Now this is the output of -atip and -prcap with a certified 8x dvd-r
> media inserted.
>
> newdeal:/home/robs# cdrecord-dvd -atip -dev=/dev/hdc
> Cdrecord-ProDVD-Clone 2.01.01a01 (i686-pc-linux-gnu) Copyright (C)
> 1995-2004 Jörg Schilling
> Unlocked features: ProDVD Clone
> Limited features:
> This copy of cdrecord is licensed for:
> private/research/educational_non-commercial_use
> cdrecord-ProDVD: Warning: Running on Linux-2.6.10
> cdrecord-ProDVD: There are unsettled issues with Linux-2.5 and newer.
> cdrecord-ProDVD: If you have unexpected problems, please try Linux-2.4
> or Solaris.
> scsidev: '/dev/hdc'
> devname: '/dev/hdc'
> scsibus: -2 target: -2 lun: -2
> Warning: Open by 'devname' is unintentional and not supported.
> Linux sg driver version: 3.5.27
> Using libscg version 'schily-0.8'.
> Device type : Removable CD-ROM
> Version : 0
> Response Format: 2
> Capabilities :
> Vendor_info : '_NEC '
> Identifikation : 'DVD_RW ND-3500AG'
> Revision : '2.17'
> Device seems to be: Generic mmc2 DVD-R/DVD-RW.
> Using generic SCSI-3/mmc-2 DVD-R/DVD-RW driver (mmc_dvd).
> Driver flags : DVD MMC-3 SWABAUDIO BURNFREE
> Supported modes: PACKET SAO
> book type: DVD-R, Version 5 (2.5)
> disc size: 120mm (0)
> minimum rate: Not specified (15)
> number of layers:0
> track path: Parallel Track Path (0)
> layer type: Rewritable Area (2)
> linear density: 0.267 µm/bit (0)
> track density: 0.74 µm/track (0)
> phys start: 196608
> phys end: 2495103
> end layer 0: 0
> bca: 0
> phys size:... 2298496
> copyr prot type: 0
> region mgt info: 0
> application code:64
> physical code: 193
> last rec address:16621272
> part v./ext code:5/2
> ind wr. power: 136
> wavelength code: 13
> write str. code: 0C 88 88 90
> Manufacturer: 'FUJIFILM03'
> rzone number: 1
> border number: 1
> damage: 0
> reserved: 0 blank: 1 incremental: 0
> nwa valid: 1
> rzone start: 0
> next wr addr: 0
> free blocks: 2298496
> blocking factor: 16
> rzone size: 2298496
> last recorded addr: 0
>
>
> newdeal:/home/robs# cdrecord-dvd -prcap -dev=/dev/hdc
> Cdrecord-ProDVD-Clone 2.01.01a01 (i686-pc-linux-gnu) Copyright (C)
> 1995-2004 Jörg Schilling
> Unlocked features: ProDVD Clone
> Limited features:
> This copy of cdrecord is licensed for:
> private/research/educational_non-commercial_use
> cdrecord-ProDVD: Warning: Running on Linux-2.6.10
> cdrecord-ProDVD: There are unsettled issues with Linux-2.5 and newer.
> cdrecord-ProDVD: If you have unexpected problems, please try Linux-2.4
> or Solaris.
> scsidev: '/dev/hdc'
> devname: '/dev/hdc'
> scsibus: -2 target: -2 lun: -2
> Warning: Open by 'devname' is unintentional and not supported.
> Linux sg driver version: 3.5.27
> Using libscg version 'schily-0.8'.
> Device type : Removable CD-ROM
> Version : 0
> Response Format: 2
> Capabilities :
> Vendor_info : '_NEC '
> Identifikation : 'DVD_RW ND-3500AG'
> Revision : '2.17'
> Device seems to be: Generic mmc2 DVD-R/DVD-RW.
>
> Drive capabilities, per MMC-3 page 2A:
>
> Does read CD-R media
> Does write CD-R media
> Does read CD-RW media
> Does write CD-RW media
> Does read DVD-ROM media
> Does read DVD-R media
> Does write DVD-R media
> Does not read DVD-RAM media
> Does not write DVD-RAM media
> Does support test writing
>
> Does read Mode 2 Form 1 blocks
> Does read Mode 2 Form 2 blocks
> Does read digital audio blocks
> Does restart non-streamed digital audio reads accurately
> Does support Buffer-Underrun-Free recording
> Does read multi-session CDs
> Does read fixed-packet CD media using Method 2
> Does not read CD bar code
> Does read R-W subcode information
> Does not return R-W subcode de-interleaved and error-corrected
> Does read raw P-W subcode data from lead in
> Does return CD media catalog number
> Does return CD ISRC information
> Does support C2 error pointers
> Does not deliver composite A/V data
>
> Does play audio CDs
> Number of volume control levels: 256
> Does support individual volume control setting for each channel
> Does support independent mute setting for each channel
> Does not support digital output on port 1
> Does not support digital output on port 2
>
> Loading mechanism type: tray
> Does support ejection of CD via START/STOP command
> Does not lock media on power up via prevent jumper
> Does allow media to be locked in the drive via PREVENT/ALLOW command
> Is not currently in a media-locked state
> Does not support changing side of disk
> Does not have load-empty-slot-in-changer feature
> Does not support Individual Disk Present feature
>
> Maximum read speed: 8467 kB/s (CD 48x, DVD 6x)
> Current read speed: 8467 kB/s (CD 48x, DVD 6x)
> Maximum write speed: 8467 kB/s (CD 48x, DVD 6x)
> Current write speed: 8467 kB/s (CD 48x, DVD 6x)
> Rotational control selected: CLV/PCAV
> Buffer size in KB: 2048
> Copy management revision supported: 1
> Number of supported write speeds: 6
> Write speed # 0: 8467 kB/s CLV/PCAV (CD 48x, DVD 6x)
> Write speed # 1: 7056 kB/s CLV/PCAV (CD 40x, DVD 5x)
> Write speed # 2: 5645 kB/s CLV/PCAV (CD 32x, DVD 4x)
> Write speed # 3: 4234 kB/s CLV/PCAV (CD 24x, DVD 3x)
> Write speed # 4: 2822 kB/s CLV/PCAV (CD 16x, DVD 2x)
> Write speed # 5: 1411 kB/s CLV/PCAV (CD 8x, DVD 1x)
I cannot see any difference....
If this really has been made with a > 6x certified medium, then
the firmware of your drive is broken. Cdrecord asks the drive
for the maximum write speed and later uses this value.
It the drive really returns wrong values, you are lost.
Jörg
--
EMail:joerg@schily.isdn.cs.tu-berlin.de (home) Jörg Schilling D-13353 Berlin
js@cs.tu-berlin.de (uni) If you don't have iso-8859-1
schilling@fokus.fraunhofer.de (work) chars I am J"org Schilling
URL: http://www.fokus.fraunhofer.de/usr/schilling ftp://ftp.berlios.de/pub/schily
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