Is anyone having problems with "bit creep"? SWDW...since you help with so many of the disks, have you had problems for people months after getting your disks finding they just won't work anymore? Perhaps I just have a dirty lens? About a year ago I updated to the 80MT, and even using Imgburn or Nero or anything else, with verified taiyo-yuden DL media, it seems like everything will work great for a few weeks, maybe a month, and then the unit starts locking up every other time I start my vehicle. I'll burn a new disk and it seems to go away, or do the language reset once or twice and it will go away for a few weeks to a month again. I'm thinking there is a ROM issue in the unit, but at this point I don't have the money to dump $600-800 to buy a new model and getting this one repaired probably isn't worth the money either.
It just seems like a combination of issues. No matter the disk version (I've downgraded back to the original 60MT before too), the color settings for the buttons no longer work. They'll only go red or dark. Half the time the buttons won't work at all which is also when the unit pretty much locks up into it's last position. E.g. if it was on NaV last, it will be on NAV but I can't really do anything with it. The touch-screen always works, but that won't always get me into the menu to bounce between AV and NAV functions.
My problems just always seem related to the disk. Even when I reverted back to the original Pioneer MT60 disk, I still have these problems, so that definitely wasn't the solution. I haven't found my lens cleaner CD just yet, but would that cause this problem? The fact that it's intermittent, and new disks or a software reset (language change) seems to fix it temporarily, leads me to believe it's something else in the hardware.