Pro Res Export Degradation

A quick question regarding exporting with "current settings" from the timeline...

I recently finished a project and exported the final master to current settings (Pro Res 422). From there I used compressor to create a few different versions.

Now I realise I missed one small sponsor logo at the end of the film and I'd like to go back and put it in. The problem is, I deleted all my render files in the meantime so it will take another very long render (and I've been having "out of memory" issues a lot which means I'll probably have to sit through it).

My question is, if I simply import the Pro Res master to a new timeline and whip the 3 second logo on top at the very end, export using "current settings" again and then go through compressor once more, will there be any loss in quality? Will the footage be degraded in ANY way?

I Imported and transcoded from MTS to begin with. Then edited the project and exported as Pro Res. Now I'd like to reimport and export one more time, which by my count makes 3 generations. Is that right?

So there's no degradation whatsoever in the first 5 generations?

...and if you want to check, who says you have to re-render the entire file? Just do a few seconds before and after the new graphic. Cut it into the already-rendered program in a new project.

See if you can tell the difference.

Dave LaRonde
Former Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA

This is all music to my ears! The dreaded spectre of a sleepless night full of "out of memory" errors was looming!