Even though I'm fairly computer savvy(I've built several and sold a few), I'll start in Noob-ville since I just joined and the whole DVD-R thing is new to me. I will say I have learned a lot from the forums, but did not see this covered: About 2 weeks ago my home-made system, which is: Asus A7N8X w/500 watt psu XP 2400+ WD Caviar 80gb 1GB ram Radeon 9800 pro Sound Blaster Live Audigy Optorite 5201 CD-RW Optorite 4405 DVD-RW All dressed up in a modded purple Chieftec case! Anyway, 2 weeks ago I noticed on My Computer page, my cd and dvd drives were missing, and nothing put into either drive would play. In the hardware mgr, they had ?'s on them, and the info said there was a registry corruption that could not be corrected. They were still visible in the bios, also.I tried the system restore, which did not give me any dates to restore to(yes i create at least 1 a week). After consulting with 2 geek friends who were stumped, I did a clean wipe and re-installed Windows, which of course fixed the problem(kinda like overhaulin a motor cause the oil filter is stuck!) Well, a system I built for a co-worker( Biostar mobo/512 ram/no vidcard/same drives) did the same thing last week.I wiped his and reloaded also. now yesterday my system did it again! I had my HD partitioned, but used partition magic to change my partition size to move some stuff to safety before wiping C: , and when the partitioning was complete, my drives were back!And yes I have defragged C: and scan for viruses, and I have run a registry check. Now that I have written this 3-page essay, can anyone help me? I have tried to cover everything, because I know newbies usually get scolded for not giving ENOUGH info. so if anybody has heard of this before, speak up. One last note: I was switching all my cables from my pc to the one I was building, and switched back and forth several times. I tried to stay grounded, but could it be static? But my PC has been plugged up and running for 4 days(not continually) before it happened last night. in fact, I had just burned a cd, and was going to burn another when it happened,but that wasn't the case the other 2 times. Static? software compatibility? bad CD-RW? DVD-RW? wearing wrong socks? Any help would be appreciated. This problem may not even fit in this category, but like i said, you guys seem to know ya stuff. thx in advance.