[timmayXL]

ive been trying to use toast 6 and fast dvd copy on my powerbook, but i've never gotten a working dvd (though i've been able to burn cds ok). i always get either buffer overrun or 0x03 errors when i try dvds. i've tried burning at both 2x and 4x, and using different media (memorex, tdk). is there something wrong with my drive or should i keep trying different brands of dvds? also, when the buffer overrun error occurs i don't have anything else running in the background, and have buffer protection enabled on toast

[U n i o n 0015]

Hmmm, strange. Sounds like it might actually be a problem with the drive (physically). I'd call Apple.

A lot of us are having problems with the Matshita UJ-835E, but it is more related to slow burn speeds rather than not burning at all.

[asxless]

It may be _what_ you are burning, rather than the DVD media or the drive. So I would try burning the same stuff using the Finder's built in Disc Burn feature. This requires you to copy all of the stuff to a DVD image before doing the actual burn. This assures that you have read permissions on all of the stuff you are trying to burn and collects it all up into a neat package before burning. This makes it much less likely to create coasters.

FWIW while I was working with the OpenOfficeOrg Mac porting team, I discovered that Toast (as least v5.x) was not too smart about checking permissions and didn't work well when burning lots of very small files (e.g. the OOo source). A single file with the wrong permissions would hang Toast causing a buffer under run. Similarly the overhead of tracking down tens of thousands of tiny text files would eventually cause the buffer to under run. But I was always able to burn the same stuff using Toast IF I first copied them to a disc image.

-- asxless in iLand

[timmayXL]

im beginning to think its just toast too, just got done burning 2 dvds with the finder (though took 3x the time) and they turned out ok. whats wrong with the file permissions per se?

[asxless]

Originally posted by timmayXL:
im beginning to think its just toast too, just got done burning 2 dvds with the finder (though took 3x the time) and they turned out ok. whats wrong with the file permissions per se?

I burned several coasters due to buffer underruns trying to back up the full source and binary after compiling OOo.

Evetually I caved in and copied the full source and binary to another partition as a temporary backup. That is when I discovered that my admin account did not have permissions to read at least one directory/file that had been created during the compile with root ReadWriteExecute only. So I _assume_ that Toast ran into this same permissions problem and simply hung until it had a buffer underrun. BTW I was always able to burn the "copy" that was missing the directory/files with the permissions problem.

FWIW burning DVDs with Toast can be 2-3x faster than with the Finder's Disc Burn feature because Toast allows you the option to collect the data on the fly instead of the extrastep of copying the data to a disc image first. But this strategy is risky when the data being burned includes lots of small and or badly fragmented files. In this case, the overhead of finding all of these files can cause Toast to fall behind the burn and not fill the buffer quickly enough.

-- asxless in iLand