Depends on what you're trying to do and whether or not Streamclip can do it. It's actually a very narrowly focused app, does a couple of things very well (opens, plays, converts, downloads) and little else.
But questions about the product need to be addressed to the publisher, Squared 5.
Converter features:
– from MPEG, MPG, VOB, PS, M2P, MOD, VRO, DAT, DCM, VDR, PVR, TS, M2T, MTS, MMV, REC, VID, AUD, AVR, TP, TP0, TRP, TOD
to MPEG, TS, REC, VID, M2V, AIFF, M1A, AC3
– multiplexing of M2V, M1V, MPV files with AIFF, M1A, MP2, MPA, AC3 files
to MPEG, TS, REC, VID, M2V, AIFF, M1A, AC3
(just open the M2V or M1V file, and the audio file with the same name will be multiplexed on the fly).
Exporter features:
– from MOV, DV, AVI, DIVX, MP4, WMV, FLV, MPEG, MPG, VOB, PS, M2P, MOD, VRO, DAT, DCM, VDR, PVR, TS, M2T, MTS, MMV, REC, VID, AUD, AVR, TP, TP0, TRP, M2V
to MOV, DV, AVI, DIVX, MP4
.