I'm just authoring 20 min seqments to DVDR (using Vegas Pro 8 and DVD Architect 5) with an ordinary DVD burner. I archive the assets used to DVDR too. When BD burners and media come down to close where DVD is now, I'll reauthor compilations onto BD. Note that if you burn BD to DVDR, you MUST use premium media, or else you will get stuttering and/or audio dropouts.