SOLVED: JF Suddenly Stopped Working (noob)

[ronnymcdonald]

here are good questions
is the drive full?
did the drive get an error and get remounted read only? (errors=remount-ro)
no mention of it but is the drive formatted in a non-linux fs? (NTFS,ExFat)

I 2nd this.

The problem started shortly after a transcode.  The log file suddenly ending.  100% sounds like the OS volume filled up.

Thanks all. The disk on my PC/server is about 90% full, but I didn't think about the ramifications of that on playing media or connecting to the server. 

I'll try removing some media and report back in a couple days. With regards to the other two questions, I'm not sure how to answer.