What I meant is that the tracks within an album are not sorted correctly, which would make sense if it thinks the track number is invalid. Let me do some decimal-to-hex conversion and compare.

The additional debugging would have been to find out what tracks those invalid FIDs were referring to, but if they're not invalid....

Hmm. It doesn't appear that the FIDs in jEmplode are in hex. They appear to be decimal -- no letters and digits greater than 7. Any other way you can think of for me to interpret those FIDs that it prints out?