I am planning 0.6 to be a total rewrite of viDrop.
Cross-platform, with better interface and better localization support. Currently It's roughly 70% complete, and works on Windows and Linux (I am developing it on ubuntu). It will support visual themes (skins) too...

And it will be just a couple of M bigger.
Sounds good, isn't it
So... I will stick with versions 0.5** until this version is ready.
:Edit
@makd511 as far as I know, mencoder does not support rmvb, and viDrop - too (for now...).