RMB select Save As / Record to Transcode / batch convert Sequences to and from various formats : .iff .tif .tga etc.
Save As record / Batch convert can convert parts of expanded sequences.
Save As record / Batch Convert can merge/ convert multiple sequence selections into one new sequence.
Save As Record / Batch Convert can merge/ convert from within the Pro Player when playing back a composite sequence or a sequence manipulated with filters.