New DC sees Boot Disc & backups as audio CDs? 2 many coasters!

[CyberZer0]

Well, alot has happened since I last #####ed up in here (My PCs been at a LAN party) so here's what's new:
I took it back to Wal-Mart and they took it back. I found one manufactured in 1999 at a local pawn shop that wanted $99 for it (and every other used DC & N64 they had. Ridiculous!). I talked him down to $50 & brought it home (Still paid too much). I popped in one of my many "coasters" & behold, the Utopia intro graces the screen (Don't quit reading yet, it's not over)! Problem solved I thought, so we decided to look through my other disc in the pile for one of my Crazy Taxi 2 backups so my friend & I could actually play something. By luck, the very next disc was it & we played for a few rounds. After that, we decided to go through all the wasted disc to find what was good and what wasn't. So, I popped in the next disc & saw the familiar DC audio CD player screen. I labeled it bad. By my estimation, I should have had at least 2 good copies for every bad copy in my pile of disc, but we had gotten more than halfway through before I realized that we had not found a single good CD (I was labeling each "Audio" CD as "BAD" so there were a good many labeled like this). I knew something was wrong so I popped in the known working CT2 backup that we had played earlier & sure enough, all I saw was the DC Audio player screen! Same thing with the Utopia CD... After leaving the console off for a while, my friend and I tried CT2 again & it worked, but when we got to the title screen the announcer's voic made a quick stutter. After the game was in progress, eventually, the music began stuttering & stopped. After that, there was no more reading from the drive & when entering a new area of the map (such as the bridge) the floor will be completely invisible (Because it won't load anything else)! Sure enough, after finishing the round it freezes whil trying to load. After re####ting the console, I get the Audio player again! Same thing with the Utopia CD. Sometimes, after leaving it off for extended periods, I can make it through a couple 10 min rounds before I run into the problem.This makes it seem very much like a heat related issue, however DC games still work fine while backups are having these symptoms, so it's like the heat only affects it's ability to read CDRs. I now have a new theory as to why this and the previous DC wouldn't work:
I believe that the first 3 CDs I tried in the original brand new DC were bad (I selected "RAW" & they didn't properly "verify" in DJ). After trying these, all backups, even good ones, would take me to the audio CD player. After trying all the CDs in the used known-good DC, it stopped working correctly & began behaving the same way. This leads me to the conclusion that it is possible to damage your DC with bad backups! Yes, GD-ROMs still work fine, but I have no other explanation for this behavior. I've seen post here saying it's impossible because it's just light but just like reading a book in bad light can damage your vision, perhaps the laser could have had trouble reading the lower density data & higher speeds or the straining to do so can make it less able to do so or something. It's not impossible. Anyway, that's the best I can describe my troubles. Anyone expierience anything similar? I doubt there's much anyone can do to help now. I think the pawn shop guy will be flexible & let me get another, but they are all newer than this one.

Oh yeah, thnx for the offer Chalbing, but I know I've been backing them up correctly now. Thanx anyway though.