Date: Sun, 8 Apr 2001 12:44:07 -0500 From: Andrew Hesford <ajh3@chmod.ath.cx> To: FreeBSD-hackers <freebsd-hackers@freebsd.org> Subject: burncd code Message-ID: <20010408124407.A61837@cec.wustl.edu>
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I'm sure you've all heard about troubles with burncd and audio CDs. I'm one of the people having trouble. I can write data CDs just fine, but when I try to burn an audio disc, it fails, no matter what speed. It simply says "writing -1 of XXXXX bytes" and quits. If I try to fixate the disc in the same pass, it gives me an ioctl error. Rather than invest in a SCSI controller and burner, I'm going to get this damn drive working for me. I know the problem is a software one, since if I try to burn the raw audio data as a data disc, it works just fine. Furthermore, I had it working under Linux with SCSI emulation. Hunting through burncd.c, I see that the "audio" or "raw" option defines the integer datablock_type as CDR_DB_RAW in the structure cdr_track in /usr/include/sys/cdrio.h (CDR_DB_RAW is defined there as well). CDR_DB_RAW corresponds with blocks of 2352 blocks of raw data. Clearly this doesn't work. I've found other CDR_DB_RAW defines in cdrio.h, as follows: #define CDR_DB_RAW 0x0 /* 2352 bytes of raw data */ #define CDR_DB_RAW_PQ 0x1 /* 2368 bytes raw data + P/Q subchan */ #define CDR_DB_RAW_PW 0x2 /* 2448 bytes raw data + P-W subchan */ #define CDR_DB_RAW_PW_R 0x3 /* 2448 bytes raw data + P-W raw sub */ Would any of these make a better selection for the burncd "audio" or "raw" directives? I'm sorry, but I know nothing of the structure of audio CDs. Any help would be greatly appreciated, and I would, of course, submit any patches I make. -- Andrew Hesford ajh3@chmod.ath.cx To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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