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Re: solaris cdrecord BH08LS20 drive BD-R problems

> > Previously I was using the JMicron JM20336 USB-SATA bridge.
> > Now I have the JM20329, apparently a simpler (and slower) chip.
> > The BH08LS20 drive connected via USB 2.0, using blank BD-R disc

> Cdrecord will be changed to work-around the firmware bug

Tested last night with cdrtools a77 version on sun ultra 60 with solaris 10
The work-around allowed me to burn a 7 GB image to blu-ray disc
but it took over 2 hours, seemingly as slow as growisofs on that machine
How do I get cdrecord to burn at 2x speed?

# cdrecord -v dev=4,0,0 speed=2 driveropts=burnfree image.iso
cdrecord: No write mode specified.
cdrecord: Assuming -sao mode.
cdrecord: If your drive does not accept -sao, try -tao.
cdrecord: Future versions of cdrecord may have different drive dependent defaults.
Cdrecord-ProDVD-ProBD-Clone 2.01.01a77 (sparc-sun-solaris2.10)
TOC Type: 1 = CD-ROM
scsidev: '4,0,0'
scsibus: 4 target: 0 lun: 0
Warning: Using USCSI interface.
Using libscg version 'schily-0.9'.
Driveropts: 'burnfree'
SCSI buffer size: 64512
atapi: 0
Device type    : Removable CD-ROM
Version        : 0
Response Format: 2
Capabilities   :
Vendor_info    : 'HL-DT-ST'
Identifikation : 'BD-RE  BH08LS20 '
Revision       : '1.00'
Device seems to be: Generic mmc2 DVD-R/DVD-RW/DVD-RAM.
Current: BD-R sequential recording
Profile: BD-ROM
Profile: BD-R sequential recording (current)
Profile: BD-R random recording
Profile: BD-RE
Profile: DVD-RAM
Profile: DVD-R sequential recording
Profile: DVD-R/DL sequential recording
Profile: DVD-R/DL layer jump recording
Profile: DVD-RW sequential recording
Profile: DVD-RW restricted overwrite
Profile: DVD+RW
Profile: DVD+R
Profile: DVD+R/DL
Profile: DVD-ROM
Profile: CD-R
Profile: CD-RW
Profile: CD-ROM
Profile: Removable Disk
Using generic SCSI-3/mmc-3 BD-R driver (mmc_bdr).
Driver flags   : NO-CD BD MMC-3 BURNFREE
Supported modes: PACKET SAO LAYER_JUMP
Drive buf size : 2097152 = 2048 KB
Drive pbuf size: 3932160 = 3840 KB
Drive DMA Speed: 1575 kB/s 8x CD 1x DVD 0x BD
FIFO size      : 4194304 = 4096 KB
Track 01: data  6614 MB       
Total size:     6614 MB = 3386473 sectors
Current Secsize: 2048
WARNING: Drive returns zero media size, correcting.
Blocks total: 12219392 Blocks current: 12219392 Blocks remaining: 8832919
Reducing transfer size from 64512 to 32768 bytes.
Starting to write CD/DVD/BD at speed 8 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 01: 6614 of 6614 MB written (fifo 100%) [buf  31%]   0.2x.
Track 01: Total bytes read/written: 6935496704/6935496704 (3386473 sectors).
Writing  time: 7189.700s
Average write speed   0.2x.
Min drive buffer fill was 12%
Fixating time:   19.265s
cdrecord: fifo had 211655 puts and 211655 gets.
cdrecord: fifo was 0 times empty and 181399 times full, min fill was 87%.

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