encoding to Quicktime better/different on mac than pc?

[bobogs]

I'm curious to know if encoding an edited DV video to Quicktime would be any different if mac os x is used instead of Windows XP. Does apple tweak the codecs differently for the two platforms?

Similar question: any differences between encoding/rendering to quicktime directly from Vegas/PremierePro versus going to an uncompressed avi first, then through Procoder Express? I would think that all these programs use the same Quicktime codec installed on the pc, right?

I see the quality of the movie trailers on the apple site (encoded on macs, I assume), so I thought I'd give quicktime a shot for my home movies that I put on my website for friends and family (encoded on my XP Pro pc) (currently encoding to WMV9, but I get some blocky output sometimes...most likely user error ).

Thanks!
Gary

[celtic_druid]

Same codecs and apple really don't have any decent ones. Sorenson isn't that special, their MPEG4 codec is just crap and their AVC codec doesn't sound that special.

[BJ_M]

the trailers on apples site are not made from DV files is one reason they look so much better ...

[bobogs]

If not from DV, what is the source? Film? And wouldn't that suffer from an analog-to-digital conversion?

Thanks for the replies.

Gary

[Cornucopia]

Yes, Film.

They are run through Rank Flying spot telecine scanners (or similar).

Yes, it is an analog to digital conversion, but one can very likely go to file formats that support extended quality-HD/2k/4k resolution, 8/10/12bit RGB or Cineon Log color depth, possibly temporal oversampling (2x/48fps or 3x/72fps)--UNCOMPRESSED!.
Then, they are digitally downconverted (hopefully using correct dithering, color spectrum translation, etc).
Makes a HUGE difference!

Scott