A120% problem

[zhangjiandong]

i think it is my english , not good enough.
so i will explain it again.
that is when making the hard disk image of the il2, it is said in A120%, some certain sectors got errors while reading.
I guess it is the problem with the CD-rom drive, maybe some cd-rom drive can not read something .
I just guess, i don't know it is right or wrong.
plz help me.

thx