I've been plyaing with a Raspberry Pi for a bit now, and have a setup of RaspBMC that works ok for streaming my ISO files, but it's far from perfect. Ideally, I would like to get a 'Boxee-Like' interface, which is essentially what RasPlex along with Plex Server gives. Very easy to use, can search, gives a lot of information on the movies etc. Perfect for my wife to be able to use.
The problem I found is that while the PMS can see all the ISOs, has thumbnails and info, and the RasPlex can see everythign as well, it can't play them. From some more searching, it would seem that in order for it to work with ISOs, the client and server both need access to the location that the files are stored. Not a big deal, I have PMS running on CentOS 6.3 x64 and have it set up in FSTAB to mount the network location as /media/Movies.
When I attempted to do the same with the RasPlex, I found that the filesystem is mounted read only. After some more searching, I'm still empty handed.
None of the options I've found to re-mount a FS as read-write worked. Is it possible to re-mount the filesystem, even temporarily, read/write so I can edit the fstab file to add the mounting information for my collection?