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Re: cdrecord and "get performance" scsi errors



On Tue, 22 May 2007 22:49:23 +0200, Joerg.Schilling@fokus.fraunhofer.de
(Joerg Schilling) wrote:

>"Giulio Orsero" <giulioo@gmail.com> wrote:
>> Also, it correctly writes DVD-RWs on the USB LG 2166D where cdrecord
>> fails (cdrecord is ok for DVD+RW on that).
>
>Could you please check the latest cdrtools + patches?

I used 
cdrtools-2.01.01a27pre3.tar.bz2 + cdrtools-2.01.01a27pre3-patch.tar.bz2

1)
The problems about get_performance, read_disco_info, read_track_info and
similar on the GSA-E10L are gone, no more errors.

2)
I can now succesfully burn DVD-RWs on GSA-2166D, and -atip returns 0.

3)
There's still an issue on 2166D:

===== DVD+RW and -atip, see very big pbuf size
Profile: Removable Disk
Using generic SCSI-3/mmc-3 DVD+RW driver (mmc_dvdplusrw).
Driver flags   : DVD MMC-3 SWABAUDIO BURNFREE
Supported modes: PACKET SAO
Drive buf size : 1409024 = 1376 KB
Drive pbuf size: 1711468224 = 1671355 KB        <=========
Drive DMA Speed: 18808 kB/s 106x CD 13x DVD
Current Secsize: 2048
book type:       DVD+RW, Version (9.2)
disc size:       120mm (0)
maximum rate:    Not specified (15)
number of layers:1
track path:      Parallel Track Path (0)

===== DVD-RW and -atip, see very big pbuf size and "read buffer" error
Using generic SCSI-3/mmc-2 DVD-R/DVD-RW/DVD-RAM driver (mmc_dvd).
Driver flags   : DVD MMC-3 SWABAUDIO BURNFREE
Supported modes: PACKET SAO
Drive buf size : 1409024 = 1376 KB
Drive pbuf size: 637726720 = 622780 KB
./cdrecord.bin: Input/output error. read buffer: scsi sendcmd: no error
CDB:  3C 00 00 00 00 00 00 FC 00 00
status: 0x0 (GOOD STATUS)
cmd finished after 0.002s timeout 100s
Current Secsize: 2048
last rma sector: 0
rzone size:         36
rzone number:       1
border number:      1
ljrs:               0
track mode:         4 copy: 0
damage:             0
reserved track:     0 blank: 0 incremental: 0 fp: 0

Note that pbuf size was not constant:
Drive buf size : 1409024 = 1376 KB
Drive pbuf size: 1325400064 = 1294336 KB     <=========
./cdrecord.bin: Input/output error. read buffer: scsi sendcmd: no error
CDB:  3C 00 00 00 00 00 00 FC 00 00
status: 0x0 (GOOD STATUS)
cmd finished after 0.002s timeout 100s
FIFO size      : 4194304 = 4096 KB
Track 01: data     1 MB
Total size:        1 MB = 1017 sectors
Current Secsize: 2048



4) 2166D and warning on DVD-RW
I get this
WARNING: Phys disk size 1017 differs from rzone size 0! Prerecorded disk?
WARNING: Phys start: 196608 Phys end 197624
even when the previous burning was done by cdrecord itself.


5) Not specific to a burner, minor issues regarding output differences
between DVD-RW and DVD+RW:

cdrecord.bin dev=4,0,0 -v -data -sao 
	driveropts=burnfree  test.iso

=== DVD-RW (I see messages about burnfree and track number 1)
BURN-Free is OFF.
Turning BURN-Free on
Starting new track at sector: 0
Track 01:   76 of   76 MB written (fifo 100%) [buf  98%]   4.1x.
Track 01: Total bytes read/written: 80637952/80637952 (39374 sectors).
Writing  time:   40.038s
Average write speed   1.5x.
Min drive buffer fill was 97%
Fixating...
Fixating time:  184.438s

=== DVD+RW (no message about burnfree, track starting from 02)
FIFO size      : 4194304 = 4096 KB
Track 01: data    76 MB
Total size:       76 MB = 39374 sectors
Current Secsize: 2048
Trying to clear drive status.
Blocks total: 2295104 Blocks current: 2295104 Blocks remaining: 2255730
Starting to write CD/DVD at speed 4 in real SAO mode for single session.
Last chance to quit, starting real write    0 seconds. Operation starts.
Waiting for reader process to fill input buffer ... input buffer ready.
Starting new track at sector: 0
Track 02:   76 of   76 MB written (fifo 100%) [buf  98%]   4.1x.
Track 02: Total bytes read/written: 80637952/80637952 (39374 sectors).
Writing  time:   21.985s
Average write speed   2.6x.
Min drive buffer fill was 97%


Thanks
-- 
giulioo@pobox.com



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