Lossless render

Hey, I tryed once to render the video in an "uncompressed" codec, but that wasn't a lossless one and made me think:
How to render video AND audio in lossless codecs?(not necessarily at the same time)
I've also seen "ExporterMP3.prm" and "ImporterMp3.prm" plug-ins so is it possible to use FLAC tracks,and to render tracks in FLAC through such plug-ins?

Bill, I've tried the lagarith codec - excellent results but huge files.
Can a footage that is output with the lagarith codec be recorded and played on a Blu-ray player?
If you export avchd content for a BD player, what codec/setting in PrP do you use to acheive best quality for AVCHD files shot in 30 fps?
I'm puzzled whether to use MPEG-2 Bly-ray vs. H.264 Blu-ray codec. I've read somewhere that if using lower bitrates (i.e. >25Mbps) best results are acheived with the H.264 codec. Does this mean that if I output at 40Mbps I should go for the MPEG-2 codec for best quality?
Thanks

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    Reason : Adding info

    >Multiplexing: None
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