Error when loading roms

[mexican(Aus)]

Im getting this error when I load:

Megaman battle network2:
Error reading image ind-mmeu.gba

SSX Tricky USA:
Error reading image m7-ssxty.gba

Kirby star fountain of dream jap gba-eurasia:
Error reading image eur-kirb.gba

[tbag]

Hmm.. might help if you told us what emulator your using