QUOTE(wizard @ May 8 2007, 06:37 PM)

Why on earth would you need to do a reset.... they don't lock up ....or do they ???
Why indeed? In many cases, PC software would be the main reason, and not just on the Denon.
MP3 files can be said to have 3 main sections - the big musical data section, the ID3 tags (just a bit of text really) and the all-important file header. The file header contains the data which tells the playback device all sorts of info about the MP3 file itself. If this vitally important part of the mp3 becomes corrupt, then the file can produce unexpected results on the playback device.
Just on the Denon? No, of course not, it's been going on for years and years.
Have a look at how many MP3 header repair utilities have been around for years and years.
Google infoAnd what causes corrupt file headers? Whilst its possible for any file on any storage medium to become corrupt for all the usual static electricity, and drop-out type issues on any storage medium eg: hard disc, cd-rom errors etc, the main culprit for corrupt mp3 file header info is PC programs.
Any PC program which you point at your music file (say a music CD, or a track on your hard drive) and you let that program manipulate and save the file, has to (re)calculate and save the file, together with the file header. If the PC software gets the calculations wrong, the header can become corrupt.
For example: Lets say that you rip a CD to hard drive with Program 1 and save the file, you then point program 2 at the file which program 1 created and program 2 removes any beginning and ending silent bits from (tops'n'tails) the track and saves it. Next you point program 3 at the file(s) to normalize them all to the same volume levels and re-save each track. Finally, you point program 4 at all the tracks, to tag and/or rename some of the tags, and this re-saves the files again.
Perhaps the 4 steps mentioned above are more than some people put their tracks through, but at the NADJ show the other week, I was talking to a guy whos upgraded to a 2500 and has previously processed all the files on his existing external drives with 6 programs in total - the 4 above, and 2 additional programs/steps - 1 program which allows him to adjust the equalisation, and another program which removes clicks and pops and rumble from tracks which he's loaded in from vinyl and cassette tapes - obviously he doesnt run this last "clean-up" program on CD ripped files.
Using a program to automatically calculate and add the bpm to a tracks header is another step.
Now perhaps its all too easy to say that avoiding having your mp3s saved with corrupt file headers is as easy as avoiding cheap or free music software, but even the well-known Exact Audio Copy used to corrupt headers when used with the LAME VBR encoder - so even the big name software houses can accidently turn decent file headers into corrupt ones, causing unexpected behaviour on many hardware or software based players.