Thanks to Jerrymc and Polyoptron. Things are working, sort of. I'm using the atapicam/cdrecord solution. But when I do a dd read to verify the write, the read ends on an I/O error rather than an EOF. (I'm not sure that this problem is new.) There is a very long delay between dd's report and the program end (delay on close?) And sometimes the eject command after the dd locks up and eventually fails. There are plenty of console messages, including READ_BIG retrying, READ_BIG timed out, TEST_UNIT_READY freeing zombie taskqueue request, and PREVENT_ALLOW taskqueue timeout - compiing request directly . This is definitely NOT reliable enough to put into a script (which would make handling the many file names more reliable).
cdrecord reports ----------------------------------- scsidev: '4,0,0' scsibus: 4 target: 0 lun: 0 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 (i386-unknown-freebsd7.2) Copyright (C) 1995-2004 Jörg Schilling TOC Type: 1 = CD-ROM Using libscg version 'schily-0.8'. atapi: 0 Device type : Removable CD-ROM Version : 0 Response Format: 2 Capabilities : Vendor_info : 'ATAPI ' Identifikation : 'DVD A DH20A4H ' Revision : 'QP53' Device seems to be: Generic mmc2 DVD-R/DVD-RW. Current: 0x0009 Profile: 0x002B Profile: 0x001B Profile: 0x001A Profile: 0x0016 Profile: 0x0015 Profile: 0x0014 Profile: 0x0013 Profile: 0x0012 Profile: 0x0011 Profile: 0x0010 Profile: 0x000A Profile: 0x0009 (current) Profile: 0x0008 Profile: 0x0002 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 FIFO size : 4194304 = 4096 KB Track 01: data 99 MB Total size: 113 MB (11:16.29) = 50722 sectors Lout start: 114 MB (11:18/22) = 50722 sectors Current Secsize: 2048 ATIP info from disk: Indicated writing power: 4 Is not unrestricted Is not erasable Disk sub type: Medium Type C, low Beta category (C-) (6) ATIP start of lead in: -11567 (97:27/58) ATIP start of lead out: 359849 (79:59/74) Disk type: Short strategy type (Phthalocyanine or similar) Manuf. index: 12 Manufacturer: Mitsui Chemicals, Inc. Blocks total: 359849 Blocks current: 359849 Blocks remaining: 309127 Forcespeed is OFF. Starting to write CD/DVD at speed 48 in real TAO mode for single session. Last chance to quit, starting real write in 9 seconds. 8 seconds. 7 seconds. 6 seconds. 5 seconds. 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 OFF. Performing OPC... Starting new track at sector: 0 Track 01: 0 of 99 MB written. Track 01: 1 of 99 MB written (fifo 100%) [buf 98%] 2.7x. Track 01: 2 of 99 MB written (fifo 100%) [buf 98%] 21.3x. Track 01: 3 of 99 MB written (fifo 100%) [buf 99%] 22.1x. Track 01: 4 of 99 MB written (fifo 100%) [buf 99%] 21.5x. Track 01: 5 of 99 MB written (fifo 100%) [buf 98%] 22.3x. Track 01: 6 of 99 MB written (fifo 100%) [buf 98%] 21.7x. Track 01: 7 of 99 MB written (fifo 100%) [buf 98%] 22.5x. Track 01: 8 of 99 MB written (fifo 98%) [buf 98%] 21.9x. Track 01: 9 of 99 MB written (fifo 100%) [buf 99%] 22.6x. Track 01: 10 of 99 MB written (fifo 100%) [buf 99%] 22.0x. Track 01: 11 of 99 MB written (fifo 100%) [buf 90%] 21.6x. Track 01: 12 of 99 MB written (fifo 100%) [buf 98%] 23.5x. Track 01: 13 of 99 MB written (fifo 100%) [buf 98%] 23.0x. Track 01: 14 of 99 MB written (fifo 100%) [buf 98%] 22.3x. Track 01: 15 of 99 MB written (fifo 98%) [buf 99%] 23.1x. Track 01: 16 of 99 MB written (fifo 100%) [buf 99%] 22.5x. Track 01: 17 of 99 MB written (fifo 100%) [buf 98%] 23.2x. Track 01: 18 of 99 MB written (fifo 100%) [buf 98%] 22.6x. Track 01: 19 of 99 MB written (fifo 98%) [buf 98%] 23.3x. Track 01: 20 of 99 MB written (fifo 100%) [buf 98%] 22.6x. Track 01: 21 of 99 MB written (fifo 100%) [buf 98%] 23.4x. Track 01: 22 of 99 MB written (fifo 100%) [buf 98%] 22.7x. Track 01: 23 of 99 MB written (fifo 100%) [buf 98%] 23.4x. Track 01: 24 of 99 MB written (fifo 100%) [buf 98%] 22.8x. Track 01: 25 of 99 MB written (fifo 100%) [buf 99%] 23.5x. Track 01: 26 of 99 MB written (fifo 100%) [buf 99%] 22.8x. Track 01: 27 of 99 MB written (fifo 100%) [buf 98%] 23.6x. Track 01: 28 of 99 MB written (fifo 98%) [buf 98%] 22.9x. Track 01: 29 of 99 MB written (fifo 100%) [buf 98%] 23.7x. Track 01: 30 of 99 MB written (fifo 100%) [buf 98%] 23.0x. Track 01: 31 of 99 MB written (fifo 100%) [buf 98%] 23.8x. Track 01: 32 of 99 MB written (fifo 100%) [buf 98%] 23.1x. Track 01: 33 of 99 MB written (fifo 100%) [buf 99%] 23.8x. Track 01: 34 of 99 MB written (fifo 100%) [buf 98%] 24.6x. Track 01: 35 of 99 MB written (fifo 100%) [buf 98%] 23.9x. Track 01: 36 of 99 MB written (fifo 100%) [buf 98%] 24.7x. Track 01: 37 of 99 MB written (fifo 100%) [buf 98%] 24.0x. Track 01: 38 of 99 MB written (fifo 100%) [buf 98%] 24.8x. Track 01: 39 of 99 MB written (fifo 100%) [buf 99%] 24.1x. Track 01: 40 of 99 MB written (fifo 100%) [buf 98%] 24.8x. Track 01: 41 of 99 MB written (fifo 98%) [buf 96%] 23.9x. Track 01: 42 of 99 MB written (fifo 100%) [buf 98%] 25.2x. Track 01: 43 of 99 MB written (fifo 100%) [buf 98%] 24.2x. Track 01: 44 of 99 MB written (fifo 100%) [buf 99%] 25.0x. Track 01: 45 of 99 MB written (fifo 100%) [buf 98%] 24.3x. Track 01: 46 of 99 MB written (fifo 98%) [buf 98%] 25.1x. Track 01: 47 of 99 MB written (fifo 100%) [buf 98%] 24.3x. Track 01: 48 of 99 MB written (fifo 98%) [buf 98%] 25.2x. Track 01: 49 of 99 MB written (fifo 100%) [buf 98%] 24.4x. Track 01: 50 of 99 MB written (fifo 98%) [buf 98%] 25.2x. Track 01: 51 of 99 MB written (fifo 100%) [buf 98%] 24.5x. Track 01: 52 of 99 MB written (fifo 98%) [buf 98%] 25.3x. Track 01: 53 of 99 MB written (fifo 98%) [buf 98%] 24.6x. Track 01: 54 of 99 MB written (fifo 100%) [buf 98%] 25.4x. Track 01: 55 of 99 MB written (fifo 100%) [buf 99%] 24.7x. Track 01: 56 of 99 MB written (fifo 100%) [buf 98%] 25.4x. Track 01: 57 of 99 MB written (fifo 100%) [buf 98%] 24.7x. Track 01: 58 of 99 MB written (fifo 100%) [buf 98%] 25.5x. Track 01: 59 of 99 MB written (fifo 100%) [buf 98%] 24.8x. Track 01: 60 of 99 MB written (fifo 98%) [buf 98%] 25.6x. Track 01: 61 of 99 MB written (fifo 100%) [buf 98%] 24.8x. Track 01: 62 of 99 MB written (fifo 100%) [buf 98%] 25.7x. Track 01: 63 of 99 MB written (fifo 100%) [buf 98%] 24.9x. Track 01: 64 of 99 MB written (fifo 100%) [buf 98%] 25.7x. Track 01: 65 of 99 MB written (fifo 100%) [buf 99%] 26.6x. Track 01: 66 of 99 MB written (fifo 100%) [buf 98%] 25.7x. Track 01: 67 of 99 MB written (fifo 100%) [buf 98%] 26.6x. Track 01: 68 of 99 MB written (fifo 100%) [buf 99%] 25.8x. Track 01: 69 of 99 MB written (fifo 100%) [buf 98%] 26.7x. Track 01: 70 of 99 MB written (fifo 100%) [buf 98%] 25.8x. Track 01: 71 of 99 MB written (fifo 100%) [buf 98%] 26.8x. Track 01: 72 of 99 MB written (fifo 100%) [buf 98%] 25.9x. Track 01: 73 of 99 MB written (fifo 100%) [buf 98%] 26.8x. Track 01: 74 of 99 MB written (fifo 98%) [buf 98%] 26.0x. Track 01: 75 of 99 MB written (fifo 98%) [buf 98%] 26.9x. Track 01: 76 of 99 MB written (fifo 100%) [buf 98%] 26.1x. Track 01: 77 of 99 MB written (fifo 100%) [buf 98%] 26.9x. Track 01: 78 of 99 MB written (fifo 100%) [buf 98%] 26.1x. Track 01: 79 of 99 MB written (fifo 100%) [buf 98%] 27.0x. Track 01: 80 of 99 MB written (fifo 98%) [buf 98%] 26.2x. Track 01: 81 of 99 MB written (fifo 100%) [buf 98%] 27.0x. Track 01: 82 of 99 MB written (fifo 98%) [buf 98%] 26.3x. Track 01: 83 of 99 MB written (fifo 100%) [buf 98%] 27.1x. Track 01: 84 of 99 MB written (fifo 98%) [buf 98%] 26.3x. Track 01: 85 of 99 MB written (fifo 100%) [buf 98%] 27.2x. Track 01: 86 of 99 MB written (fifo 100%) [buf 98%] 26.4x. Track 01: 87 of 99 MB written (fifo 100%) [buf 98%] 27.2x. Track 01: 88 of 99 MB written (fifo 100%) [buf 98%] 26.4x. Track 01: 89 of 99 MB written (fifo 100%) [buf 90%] 25.8x. Track 01: 90 of 99 MB written (fifo 98%) [buf 98%] 28.0x. Track 01: 91 of 99 MB written (fifo 100%) [buf 98%] 27.4x. Track 01: 92 of 99 MB written (fifo 100%) [buf 98%] 26.5x. Track 01: 93 of 99 MB written (fifo 98%) [buf 98%] 27.4x. Track 01: 94 of 99 MB written (fifo 98%) [buf 98%] 26.6x. Track 01: 95 of 99 MB written (fifo 98%) [buf 98%] 27.4x. Track 01: 96 of 99 MB written (fifo 100%) [buf 98%] 28.3x. Track 01: 97 of 99 MB written (fifo 100%) [buf 98%] 27.4x. Track 01: 98 of 99 MB written (fifo 100%) [buf 98%] 28.4x. Track 01: 99 of 99 MB written (fifo 100%) [buf 98%] 27.5x. Track 01: Total bytes read/written: 103874560/103874560 (50720 sectors). Writing time: 41.290s Average write speed 20.8x. Min drive buffer fill was 90% Fixating... Fixating time: 14.014s cdrecord: fifo had 1637 puts and 1637 gets. cdrecord: fifo was 0 times empty and 1232 times full, min fill was 84%. ----------------------------------- I would be grateful for any clues about what is still wrong here. Mark Terribile _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"