Welcome to our community

Be a part of something great, join today!

Log in
  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

The CF module...

Status
Not open for further replies.
Blue-ray is an extremely sensitive medium, as far as the most recent reports go.
Far more sensitive to scratches and other damage even than DVD-R's
Click to expand...
Actually, most BD discs are hard coated (Durabis and the like) and resist scratches far better than any other optical disc. Especially the TDKs.

I'm already preparing a bunch of my student shorts to be transferred to my Sony PSP on a 4gb memory stick. How great would that be to just bring that out and say "Here, which one would you like to see first?"
Click to expand...
I've been doing this for over a year now. :)
 
zeke said:
Maybe, I thought BLU RAy supported up to 30MB play back. I'll have to check.
If nothing else, a relatively cheap way to permanently archive. You could still keep the data on the laptop for playback.
Click to expand...

BR is 54 MBit
HD DVD is 36MBit

Red is 27MByte

-Steve
 
Actually BluRay video spec is only 39Mbit max, even though the current generation of drives can do 54Mbit for data.
 
> ...Red is 27MByte...

...as originally spec'd. I gather they have moved to a variable bitrate now, based on Jim's post here: http://www.reduser.net/forum/showpost.php?p=72735&postcount=7 saying that a Transcend 266x CF card can handle the data rate on simple scenes but not complex ones.

If 1x = 150 KByte/sec then 266x = 38.96 Mbyte/sec but I don't know whether "266x" means sustained write speed, maximum burst read speed, or something else.

I haven't been following closely but AFAIK "variable bitrate" has not often been used in digital cameras, among other things because tape drives are normally fixed-bitrate devices. So I guess Red is really taking advantage of their tape-free system with that design decision.

I don't know how "variable" the bitrate is, but it also means you will not be able to predict exactly how much runtime you'll get from a given memory device. For example, high-detail wide nature shots with deep focus will take more storage space than a typical dialogue scene with the background OOF.
 
Jeff Kilgroe said:
Actually BluRay video spec is only 39Mbit max, even though the current generation of drives can do 54Mbit for data.
Click to expand...

Right. And the context of this discussion (using Blu Ray discs to store Redcode data instead of CF cards), it's the 54Mbit rating that would apply.

It's about 4X too slow.

-Steve
 
Honestly, I can't figure out why anyone would want to backup a camera master to any optical format. Imagine this: It took years for Sony and Philips to develop manufacturing standards for CDs (ever notice your older discs developing pin-holes?). Imagine if that were your camera master...

Anyway, all hard drives fail at some point or another.

I guess it all comes down to what your insurance company will back, eh?

Cheers!
 
Multiple CF slots would be a really helpful. At least dual.
I hope you guys are considering this as a future option.
 
Status
Not open for further replies.
Back
Top