my 2 disk drives disappeared

i was copying mp3's from cds back on to my pc(that i'd recently stored on the disk before operating system reinstall) . 1st time it froze while it was accessing the folders, so i closed the cd folder and opened again... i copied a couple of folders to pc (click and drag method) and when i tried to open one more folder it froze again... so once again i closed the cd folder. but when i go back into my computer both cd drives are gone(cd & cd-rw). i restarted pc and 1st thing that pops up is (don't remember exactly) "pc can't find primary or secondary drives press F1 to continue or F2 to enter set-up"

go into device manager and listed under IDE ATA/ATAPI controllers:

• intel(R) ultra ATA storage controller - 24cb
• primary IDE channel
• secondary IDE channel

neither shows any problem. but one is suppose to be samsung cd-rw not sure what the other was but these properties have changed.

clicking update drivers come back with no new drivers available.

under disk drive:

• WDC WD400BB-75FJA1

i dont recall this entry, this doesn't look familiar to me...

the cd is a little scratched which would generally give a error message but never reconfigure my hardware before. the only thing different is that the cd seems to have a manufacturer defect on the outer edge under the surface (sort of looks like a mirror that has the reflective parts corroding).

i ran ccleaner to scan for registry issues and comes back none found.

dim 2400

winXP

SP3