Hey man,
sorry i thought i posted a reply but it must not have went through correctly, it sounds exactly like the problem that I was having. On another thread a fellow member told me that Pioneer informed him of a problem created by Burnt discs. From the sounds of your post you didnt use a burnt disc. But the symptoms sound the same. Anyway the other user basically said that Pioneer is aware of the problem and the fix is to have your system reflashed, which is a 75$ job and takes 3 weeks to do. I had no choice, luckily the person i bought the unit off of got me a replacement instead of me having to deal with that. I would call pioneer and explain to them what happened and see what they have say and ask about this reflashing maybe it could be covered under warentee.. GL man. sorry for not responding before.

Thanks for the response. Looks like I'm going to have to bring it in to Circuit City to have it repaired as it seems like there is no way for me to fix it...

I have this same problem with the "insert appropriate disk" and I have tried going through the service menu to rewrite the programs, but no luck. I was just wondering if anyone has found a fix, since it seems so many have had the same problem.

sorry to dig up a dead topic but I ran into the exact same problem again! with a whole nother D1 system and a Different disc. I need to know if anyone ever found a solution to this other than sending back to Pioneer. I found a guy on ebay who will do repairs for 145$ including shipping to and from, not sure if hes reputable or not, little weary also. Anyone tried this? GRRRR... so close to going to different company

anyone found a way around this that didn't involve the wallet?

There is a guy here, for $40 he will send me directions on how to fix this problem. Kind of weary to do that. If you want to try pm me for his address.

ok so heres the deal I sent my unit to get fixed turns out that my GPS board was fried somehow!? I guess it didn't like the dvd i burnt. Oh well for custom backgrounds on the avic, i'm not experimenting again. I don't feel like spending 200 to get my unit fixed again...coulda just put that money towards a better new one...or something else....