US SSD lost music stores

Odd one this. My NAS is mountable, all folders intact, all music plays back, everything tickety boo except I can't mount my two music stores in music store manager via OSX web browser and also I can't rip any CDs as the music store isn't presenting itself to be accessed for that task, but it is there and all music already in the two stores is seen in network shares/manage shares.

I have 1.67TB of space left. When a CD won't rip it ejects it and says not enough space?

Any possible ideas while I spend this afternoon tweaking and re-setting?

Thanks

Dan43