The Express has a limit in the display of 70:00 minutes:seconds in one file.

If you get to 69:59, the next second will be 00:00.  

Small, petty and annoying.  

I could understand 99:59; only two minute digits.  

But why 70:00?

It’s not the first time (nor likely to be the last) that the SanDisk programmers screwed up something in their firmware programming code.

Normally, no one would have files that are over an hour long on an MP3 player anyway. Where are you getting such long files from?

In my case, the files are rips of audiobook discs.

Or it could be a 2 hour radio show recorded then converted to MP3  or left a wav