100 Mbps 422 mxf

megabit wrote on 2/20/2010, 3:31 AM

This post is addressed to those who - like me - enjoy the quality of 100Mbps, 4:2:2 material from NanoFlash.

Have you noticed that smart-rendering such clips using the MXF, 422 Profile template can preserve the 100 Mbps bandwidth? Even though the template says 50 Mbps (CBR)...

Interestingly, this works flawlessly in VP 8.0c only; with VP9.0c (both 32 and 64bit), if the clip is larger than some 0.5GB, all I get is audio...

Now, I'd love SCS to keep this feature while getting rid of the above mentioned limitation in Vegas 9.0d (and future releases). It's great to be able to preserve the pristine NanoFlash quality after just basic edits (which allow for smart-rendering the cut timeline).

It would be even better if full render of CC'ed, FX'ed material also resulted in a 4:2:2, 100 Mbps file...

SCS, please put this on the wish-list!

Piotr

Comments

farss wrote on 2/20/2010, 3:48 AM

I'm wondering why the obsession with 100Mbps 4:2:2 mpeg-2.
There is the Sony YUV codec which is 4:2:2, compatible with everything I've come accross and is lossless. I don't know how it compares file size wise, probably not a massive difference and file size is not that much of an issue these days.

Bob.

megabit wrote on 2/20/2010, 4:31 AM

Obsession?

1. Example just tested: a 200 MB nano clip (100 Mbps) smart-renders to a 200 MB mxf file at 100 Mbps (thus lossless as well); its Sony YUV avi file is 1.5 GB.

2. Use Snell&Wilcox utility to extract m2v from the resultant mxf, mux with audio of choice, and you can play smart-rendered (edited with simple cuts) material using any MPG2 player (be it software, or hardware like CF cards, USB sticks, etc.). No longer limited by the BD's 40 Mbps max, 4:2:0 format!

That said, intermediates like Sony YUV are great for more serious editing.

Piotr

megabit wrote on 2/21/2010, 2:11 AM

I guess I should have also mentioned one more possibility smart rendering to100Mbps mxf is creating:

3. After the most essential cuts, smart render to <4GB files, put them back on the CF card, and play the pristine 100Mbps 422 HD straight from the nanoFlash hooked to a HDTV via HDMI.

Piotr

farss wrote on 2/21/2010, 5:52 AM

Sounds interesting Piotr, we're getting closer to buying a Nano. Already have the KiPro but it's a BEAST :(
I'm surprised you can playout 100Mbps MXF from a thumbdrive, I thought they pegged out at around 30Mbps and that's on a good day.

Bob.

megabit wrote on 2/21/2010, 6:12 AM

Bob, it's more like 30 MBps, and

8 x 30 = 240 Mbps

;)

Seriously though - I can play such clips straight from CF card in the USB reader that comes with the nanoFlash, using Sony's MXF Viewer or VLC - why not from a stick?

PS Heck, just tried it for you Bob - and I can play 180 Mbps clips straight from the CF card in the USB reader!

jwcarney wrote on 2/21/2010, 12:29 PM

You said the KiPro is a beast? Could you elaborate?

megabit wrote on 2/22/2010, 6:34 AM

Bob,

FYI, I can play 220 Mbps from the nano-recorded CF card in the USB reader...

Piotr

PS. Still dismissing the capability of smart rendering such high bitrate mxf's in Vegas?

farss wrote on 2/22/2010, 2:17 PM

It's BIG, it's heavy and it gets hot.
Add the exoskeleton and it gets bigger, heavier and hotter. It is built like a tank which is good. The data modules appear to be housed in a plastic shell, I would have thought a metal case would have helped heat dissipation. I don't understand why they used a fluro display either.
Not something you'd really contemplate using with smaller cameras, the Nano seems a far better solution. The KiPro certainly has it's place in the grand scheme of things and I like the amount of connectivity it has although I've found the ethernet interface a challenge to configure. You seem to need to do a cold reset a couple of times to get changes to 'take'.

We're keeping our eye on the Cinedeck. I don't like their website though.

Bob.