Compressor or Mpeg Streamclip
 

Compressor is taking so long to compress 4 segments, 5 minutes each of Sony HD EX1 720p footage I'm now looking at mpeg Streamclip. Compressor is saying 17hrs.
I have rendered out to QuickTime files from the time line which are all in their native 720p settings. My normal path is render from the timeline to Compressor but I’m running out of time to go back to this work flow.
I was thinking of getting Mpeg Steamclip to render these files out to SD 16:9 Pal progressive Apple uncompressed and then import these into Compressor where Compressor can handle a two pass encode to format some DSP files for an encode to DVD. Is this a good Idea or am I wasting my time and losing quality on the way.

Need some advice from Mpeg Streamclip users for this or anyone else.

Thanks