I burn custom Data CD's in Track-At-Once (TAO), cd-duplicated in RAW-Disc-At-Once, audio CD's (CDDA) in Disc-At-Once (DAO).
DAO is much better for CDDA anyway, as it prevents noise at the start/end of tracks that some people might notice with home-burned audio compilations. It also has some other advantages if you are into advanced settings/effects.
But I would try to work out the problem still, as it would be nice to be able to fill the cd to the brim, and TAO SHOULD work, which shows signs your burner isn't quite installed correctly. There might be other issues down the track (no pun intended).
If you are intrested in trying to solve the issue's, I would do it in roughly this order:
[list]
[*]Try another blank cd brand.
[*]Try another burning program. Though I admit to being a little anti-EZCD, It would also be useful for narrowing the problem down. If it happens in other burning apps, its a lower level problem. (software, then drivers, then hardware) I recommend
Nero Burning ROM [*]
Check for ASPI layer Updates[*]
Check for Easy CD-Creator Updates from Roxio [*]Check for new IDE bus master drivers (or USB or SCSI, which ever it happens to be) - probably from your chipset manufacturer (eg Intel, VIA, SiS...)
[*]
check for firmware updates for your burner [*]Check that the drive is installed correctly (master-slave, cable order if on a UDMA66+ cable, BIOS settings)
[*]Try DMA on and off.
[/list:u]
Yes, I do post just for the hell of it.
-insaNity