When trying to burn an audio compilation (length 78m 08s) on a 80min CD xfburn errors out There is not enough space available on the inserted disc. Removing one title so the length gets down to 73m 24s is accepted by xfburn. I know the disk has the capacity as burning with another application works.
There was some API confusion, and I ended up mixing taking the available space for data to check how much audio would fit - which understated the size of the disc. This is fixed in r7583, please reopen if it is still incorrect.