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photoJPEG or DV50 for archive?
If I am archiving hi-8 footage which would give the best quality: photoJPEG @ 75% or DV50? Would going past 75% with photoJPEG be worthwhile? Would bitjazz or another codec make more sense? I’m looking for the best balance of quality and filesize.
Thanks
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6 Replies
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DV50 is the higher quality codec
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I think you’ll find that PhotoJPEG75% is better even than DV50, and nearly the equal of uncompressed. There’s no point going beyond 75% to 100% as PhotoJPEG100% is RGB(4:4:4) whereas 75% is Y’CbCr(4:2:2) which is still overkill for hi8.
Graeme
– http://www.nattress.com – Film Effects and Standards Conversion for FCP
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Yes, exactly what Gramme said. PhotoJPEG is quite a bit better. 75% quality is what you want – it’s virtually lossless, much like the Digibeta codec.
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BTW, check out:
http://www.onerivermedia.com/codecs/
That site is fantastic. He did a 10 generation test for most codecs. DV50 was very lossy while PhotoJPEG was almost identical.
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Cool. Digibeta quality and possibly smaller files than DV25! The only downside I see is no RT FX in FCP. Is that because photoJPEG use up more processor power than DV50?
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Yes, sort of, but it’s really an intentional thing by Apple. There’s a hack to give you RT effects with P-JPEG. Kind of complicated to explain though.
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