Three Very Important Technical Questions

[motorious]

My phone was acting weird (programs that were installed were not being found) so I soft reset. THe phone became infinitely paused at the touch pro flash screen. So i tried reflashing with my SD card. I flashed 2 different roms, both with filesizes greater than 110 megs. They would get stuck infinitely flashing through the SD card. Finally I flashed a rom (Mighty 6) which was under 100 megs and it worked.



1) It almost sounds like I had a device filesystem corruption or something. How would I determine if a portion of my device's filesystem is corrupt?



2) If part of the file system is corrupt, is there a way to mark the corrupt portions?


3) If it's not a corrupt filesystem, what else could it be?


Thanks guys, I'd appreciate any help!