Thanks to all for the comments. Medianet seems capable of doing everything I need done, but unfortunately I cannot make it work for an Empeg with V3a11, unless "it can download and use a 'receiver.arf' that is different than supplied with Rio Receivers." Anyone knows if it can?

If not, it seems I'll have to live withing the 18gb space I have in the Empeg's hard disk.

Thanks again to all.