Since I installed the 9.0.4 update, every time I try to burn a Video_TS folder, Toast gives an error right at the end of burning (just before the Lead-Out starts to be written).
The error states "Buffer underrun error. Writing was halted because data could not be sent to the recorder fast enough to maintain the current write speed. Please try again with a slower write speed." It then proceeds to write the lead-out, but if you look at the disc in Toast afterwards, it shows as not blank but won't mount.
I have trashed my preferences files, fixed disk permissions, rebooted etc. Problem persists.
If I go back to 9.0.2, all works fine, so I know it's not the media, writer or source files.
OS X 10.5.5, all updates.