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Hossie
Tux's lil' helper
Joined: 08 Dec 2005
Posts: 116
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 Posted: Fri May 12, 2006 5:10 pm Post subject: Burner slow |
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I have recently bought the LG-GSA-4167B. But my burner seems to be very slow on Linux. Here's what GnomeBaker says:
| Quote: | cdrecord: No write mode specified.
cdrecord: Asuming -tao mode.
cdrecord: Future versions of cdrecord may have different drive dependent defaults.
cdrecord: Operation not permitted. Warning: Cannot raise RLIMIT_MEMLOCK limits.cdrecord: Cannot allocate memory. WARNING: Cannot do mlockall(2).
cdrecord: WARNING: This causes a high risk for buffer underruns.
cdrecord: Operation not permitted. WARNING: Cannot set RR-scheduler
cdrecord: Permission denied. WARNING: Cannot set priority using setpriority().
cdrecord: WARNING: This causes a high risk for buffer underruns.
scsidev: '/dev/hda'
devname: '/dev/hda'
scsibus: -2 target: -2 lun: -2
Warning: Open by 'devname' is unintentional and not supported.
Linux sg driver version: 3.5.27
SCSI buffer size: 64512
cdrecord: This version of cdrecord does not include DVD-R/DVD-RW support code.
cdrecord: If you need DVD-R/DVD-RW support, ask the Author for cdrecord-ProDVD.
cdrecord: Free test versions and free keys for personal use are at ftp://ftp.berlios.de/pub/cdrecord/ProDVD/
Cdrecord-Clone 2.01.01a06 (x86_64-unknown-linux-gnu) Copyright (C) 1995-2006 Jörg Schilling
TOC Type: 3 = CD-ROM XA mode 2
Using libscg version 'schily-0.8'.
Driveropts: 'burnfree'
atapi: 1
Device type : Removable CD-ROM
Version : 0
Response Format: 2
Capabilities :
Vendor_info : 'HL-DT-ST'
Identifikation : 'DVDRAM GSA-4167B'
Revision : 'DL11'
Device seems to be: Generic mmc2 DVD-R/DVD-RW.
Current: 0x0009
Profile: 0x0012
Profile: 0x0011
Profile: 0x0015
Profile: 0x0016
Profile: 0x0014
Profile: 0x0013
Profile: 0x001A
Profile: 0x001B
Profile: 0x002B
Profile: 0x0010
Profile: 0x0009 (current)
Profile: 0x000A
Profile: 0x0008
Profile: 0x0002
Using generic SCSI-3/mmc CD-R/CD-RW driver (mmc_cdr).
Driver flags : MMC-3 SWABAUDIO BURNFREE
Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P RAW/R96R
Drive buf size : 1053696 = 1029 KB
Drive DMA Speed: 12649 kB/s 71x CD 9x DVD
FIFO size : 4194304 = 4096 KB
cdrecord: Operation not permitted. WARNING: Cannot set RR-scheduler
cdrecord: Permission denied. WARNING: Cannot set priority using setpriority().
cdrecord: WARNING: This causes a high risk for buffer underruns.
4 seconds. 3 seconds. 2 seconds. 1 seconds. 0 seconds. Operation starts.
Waiting for reader process to fill input buffer ... input buffer ready.
BURN-Free is ON.
Performing OPC...
Starting new track at sector: 0
Writing time: 172.439s
Average write speed 24.5x.
Min drive buffer fill was 7%
Fixating...
Fixating time: 15.878s
cdrecord: fifo had 10231 puts and 10231 gets.
cdrecord: fifo was 0 times empty and 5379 times full, min fill was 45%. |
Why do I keep getting Permission denied errors? I am in the cdrom group, though.
And why is the average speed just 24.5x? Where is all the speed?
And why does it say this version of cdrecord does not include dvd-r support? How can I burn dvd-r?  |
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papal_authority
Veteran
Joined: 31 Mar 2004
Posts: 1823
Location: Canada
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| Posted: Fri May 12, 2006 6:21 pm Post subject: |
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You should be able to set the speed and record a DVD with dvdrcord. This is the command I use:
| Code: | | dvdrecord -dao -v speed=32 dev=ATAPI:0,0,0 /path/to/dvdrom.iso |
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The free market gave me gonorrhea. |
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eddy89
Apprentice
Joined: 01 Feb 2006
Posts: 180
Location: /world/Italy/Torino
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| Posted: Fri May 12, 2006 6:25 pm Post subject: |
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What do you mean forall the speed?
Anyway, a lower average speed than burner's maximum is just the result of the CAV (Constant angular velocity) writing of the recorder: The maximum speed is reached just at the end of the disk, and it start at a lower speed, eg. 16x for 40x.. ok?
In order to burn dvd, i use growisofs. |
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Hossie
Tux's lil' helper
Joined: 08 Dec 2005
Posts: 116
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| Posted: Fri May 12, 2006 6:45 pm Post subject: |
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I think the low speed is because of that permission denied errors with that memory stuff, so the burner has to burn slower to not get into buffer underruns.  |
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troymc
Guru
Joined: 22 Mar 2006
Posts: 553
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| Posted: Fri May 12, 2006 10:00 pm Post subject: |
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You can fix those permission errors and eliminate other issues by allowing cdrecord to run as root:
| Code: |
# chmod 4711 /usr/bin/cdrecord
#
# ls -l /usr/bin/cdrecord
-rws--x--x 1 root root 364032 Mar 30 10:37 /usr/bin/cdrecord
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troymc |
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