Hi,
I bought last week a Mep-7000,but it gives me problems.I use an external WD 250GB drive...but not every mp3 is working,but i cannot figure out why.
Also takes it sometimes up to 30 seconds to load a mp3.
Second problem : sometimes a played mp3 stops for a few seconds.
Third : Some cd's will not load and when this occurs i see on the display that the Mep-7000 "thinks" its a cd-rom,but its a normal cd.

Is my MEP-7000 just a bad one ?

I'd check to see if the MP3s are okay - run this program:
http://www.gromkov.com/faq/repair/mp3_validator.html

Check that you have a reasonable number of files in your folders. Figure that you want about the same number that are on a CD and don't stack them more than 8 levels deep.

Both of these will play into the first two items.

As for the CDs, are they burned CDs or commercial?

Pulse,thank you for responding.
\I also use(d) a Denon 2500 and the mp3's work fine with that device.

On my external Hard drive i use just folders for artist...not more.

And the cd's are commercial...new one's ,old one's ..it happens too often.

It could well be that you have a bad unit, but I'd still run the MP3 validator.