My Swap Magic DVD makes a horrible clicking sound when I try to use it, and regularly I get a "Cannot read disc" error. This is *before* the swap; the problem is with the DVD. I get the same kind of noise from HDAdvance so I'm not sure it's a defective disc. I cleaned and adjusted the lens just to be sure, but since I'm having absolutely no trouble with any other discs, it's not the lens that's the problem. I've discovered that I can get a more reliable boot from Swap Magic if I put an original DVD game disc in first, then eject and switch to Swap Magic. What happens is that the original DVD game causes the same clicking sound (if I've been trying to use Swap Magic, that is; normally, that sound doesn't happen with originals). If I *don't* get the clicking sound from the original DVD, then Swap Magic will not work if I put it in next. But if I do get the click, Swap Magic will work (even though it will still click). It seems to me that Swap Magic is forcing the lens gear out of alignment. Probably the horizontal alignment, not the vertical; it sounds like it's smacking against the side of the drive. By putting in an original DVD and getting the click, the lens is going back into alignment... until I use Swap Magic, which after the first use will knock the lens out of alignment again so that SM won't load a second time. Has this happened to anyone else? Is it a defective disc? Is there something mechanically messed up with my PS2? It's a chubby PS2 (v4, I think), so I have to use the slide tool... could that be knocking things around?