@aflegg, mencoder will happily accept all *.vdr input files to generate a single output file. I'll have a look if I can add vdr support to mediaserv (I'm just procrastinating, I promised myself I'd do it as soon as I learned about mediaserv, and I still haven't started).
tablet-encode foo output.avi
Now, I'd like if you added multiple languages to the metadata, and pass the corresponding aid to mencoder, so I can procrastinate even more , no, seriously, that would be a useful option.