Greetings!

This seems to be a match to that builder bug that I was seeing before.

What I would like you to do is as follows. You will be interrupting the regular disk build slightly to capture data.

a) Run diskbuilder on your machine.
b) It will run through the first phase - flashing and pumping. As soon as the pumping completes, it will reboot the player. Remove power from the player immediately at this point.
c) Exit the builder, run hyperterm and set it to capture a fresh log file.
d) Apply power to the player. At this stage, the builder image will start building the disk. It should not prompt you to hit a key, since the music partitions are not completely built.
e) Watch for any errors in the build. I would always see:

EXT2-fs error (device ide0(3,4)): ext2_check_descriptors: Block bitmap for group 64 not in group (block 3)!
EXT2-fs: group descriptors corrupted !
mount: wrong fs type, bad option, bad superblock on /dev/hda4, or too many mounted file systems

If you get a clean build without any errors, you can interrupt the stress test, and apply v2.0 developer and proceed as normal.

If you still get an error, please post that build log for me. Thanks!

Edit: re-reading your log file. You already have that boot data there. Looking it over again...