I am working on a project that is mixing media and need some advice how to arrange, sequence, compress, and output so they are all the best quality. I am shooting HD on the Sony EX1, capturing stock footage off BetaCam SP, and including archival stills. I obviously want to take advantage of the HD footage so how do i include the BetaCam SP do i just drop it into the sequence in Final Cut 6 with the EX1 or is it common practice to have different aspects in one video since I don't know if i want to stretch the BetaCam SP footage or keep it in 4:3. Anyone else worked with mixed media and have some suggestions?