Is compressor 4 introducing audio clicks on send from FCP X

I'm cutting up some DV copies of TV shows in FCP X for a showreel. Then sending edited clips to Compressor to transcode to one of the preset formats
"SD Video Sharing" for upload to Vimeo.
Resulting  .movs have small but noticeable audio clicks. Not great for a music producer's showreel as you can imagine.
This started happening about a week after me starting the project.
I've tried rebooting, disconnecting everything, different drives, repairing perms etc
Anyone else having similar problems?
Thanks,
Simon.
Macbook Pro Late 2008 2.8 Intel Core Duo, 8gig RAM, 10.6.8.

People will tell you that encoding in Compressor will give the best quality, but that assumes you are using a suitable preset and for your length of video the ready made ones are unsuitable and will waste time as they are all 2-pass with variable bit rates (VBR).
For DVDs under 70 minutes long the best quality and fastest encoding times are achieved using a constant bit rate (CBR) of around 7.5mbps.
For your short DVDs you should achieve the highest quality and fastest processing by simply exporting the project from the timeline as it is, drop it into DVDSP and set DVDSP to encode and burn it at the specs I gave above.
Returning to my opening comment, you will frequently find that the theoretically best solution to a problem results in no discernible improvement but often entails a lot more work and time-expenditure.
P.S. You might get marginally better quality by raising the bit rate to 8mbps but you run a slight risk that some old or cheap players may not be able to keep up, resulting in dropped frames.
Message was edited by: Ian R. Brown

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