need help with burning skies of arcadia

[tys3cret]

ok. i have 1 skies_of_arcadia.rar file.

i unzipped it and got skiescd1.cdi (763,818kb) and skiescd2.cdi (793,988kb).

now i used alcohol 120% and tried burning the cdi file. i got an error that read:

image file loading failed!
error message: write to memory buffer failed!

so i then tried using nero. i converted the .cdi files into .nrg files and tried burning them, but they wouldn't fit onto a cd. it was successful when i did a simulated burn, but when i put in a cd it didn't work.

can someone please help me out here? do i have a bad file?