View Full Version : Clip Browser: is it necessary?


Michael B. McGee
April 16th, 2009, 07:59 PM
i've been using Clip Browser version 1 successfully for about a year now. i haven't had a need to upgrade to 2.5, but i did it anyways just to see the difference between the two. If you're only dumping/transferring footage from the SxS cards to a hard-drive, do you really need to use Sony Clip Browser? this leads me into my second question. on version 2.5 you have an option to use Data Protection and/or CRC. does anyone find these two functions to be necessary? i've read a few threads where people have had trouble transferring footage, but they weren't very specific. so, what are your thoughts?

thanks,
Mike

Craig Seeman
April 16th, 2009, 08:41 PM
Regarding CRC, Are seat belts necessary?

Once accident and it can be crippling or fatal. In the course of lifetime one accident can cause you to lose the shoot, the client, maybe even your entire business.

Michael B. McGee
April 16th, 2009, 09:20 PM
touche! but if in a pinch for time, can you get away without it? subjective question i know, but that's one reason why this website exists isn't it?

Leonard Levy
April 17th, 2009, 01:22 AM
Its very rare to have a problem with drag and drop. I don't know anyone who has experienced one. However I was finally convinced to switch to Clip Browser 2.5 and I don't see any reason not to use it. Its just as fast as drag and drop and frankly I loved the features it offered.

Trevor Meeks
April 17th, 2009, 01:43 AM
i've never had a problem with drag and drop. as long as your file system is structured properly there is very little chance of anything going wrong, but of course I always try to keep the cards intact until I can be 100% certain. Perhaps just something I learned from my photography business...

David Issko
April 17th, 2009, 05:17 AM
i've read a few threads where people have had trouble transferring footage, but they weren't very specific. so, what are your thoughts?

thanks,
Mike

I'v read a few threads where people are beside themselves due to not using CB (with CRC checked on). Why go to the expense of XDCAM EX system and not follow through with Sony's strongest recommendation to safely copy the BPAV folder & files to other storage meduims using CB?

For me, it is a no brainer to use CB with CRC checked on. I do it as soon as possible after my recording and to 2 Lacie Rugged drives as well as 2 additional internal drives. I do another job in the meantime. Once checked, I then erase the sxs cards.

No fuss, no bother, mimimise/eliminate risk to possible corrupt files using the drag & drop method.

John Peterson
April 17th, 2009, 05:23 AM
In terms of the newer versions of Clip Browser, don't forget the conversion tools that are built in. While I am still experimenting in terms of the overall conversion quality of Clip Browser vs alternate methods it seems reasonably good.

John

Ed Kukla
April 17th, 2009, 05:32 AM
If you are using the SDHC cards and keeping them as archive, like tape, is there any reason you have to use the CRC & error detection? If you have the one in a thousand error on transfer, you can go back to the card to retransfer the clip.

When copying card-to-card in the camera, does the camera do this CRC & error detection?

Piotr Wozniacki
April 17th, 2009, 05:49 AM
To me, it's obvious that any mission-critical (i.e. paying gig, especially of a live action type) does call for every safety measure possible. For this kind of projects, I'm using either CB or ShotPut (both with CRC enabled).

For less critical tasks (like test shooting for PP tweaking, comparisons, etc.), I always want the clips to be ready on my HDD as quick as possible. In such situation, I don't even bother with copying entire BPAV's; I use Clip Browser's "Export MXF for NLE" straight from the SxS cards.

I wonder - if the CRC is set to ON in the CB's preferences, is it also in action when exporting (as opposed to copying)? Personally I doubt it, as exporting entire 8GB SxS card to mxf files takes seconds (no kidding - less than a minute) on my Quad desktop with PCIe ExpressCard reader...

Edit: after a second thought, I'm positive CRC is NOT active when re-wrapping; after all it would be comparing apples to oranges :)

Peter Mee
April 17th, 2009, 09:13 AM
My advice is ALWAYS use safe mode/CRC unless you are happy to lose footage.

I posted here a while back about an incident I had. Copied files from SxS using ClipBrowser with no safety. Everything looked fine and footage imported iinto FCP OK and I could edit. It was only when I tried to export from FCP that application errors started showing up and it transpired that I simply could not convert the footage in any way. Luckily I had not deleted the cards and re-transfered using safety/CRC and all was OK.

What was frightening was that it was at the END of the process that the problems manifested. Imagine if this had been a large projects with weeks or months between shoot and delivery? By that stage, cards would have been wiped.

Peter

Markus Klatt
April 17th, 2009, 11:42 AM
Just a short question between: is the "data-proirity" and "CRC-check" from Tool-Options-menu active at any copying within clip-browser?

Especially:

- copying fresh shot clips from SDHC in USB-card reader to HDD?
- copying single clips from any drive / directory to another drive / directory?

Or is it just when using the "copy all" function when EX1 is connected via USB-cable to the pre-selected directory in Tool-Option-menu?

Last one is extreeeeeeeeeemly slow. One should invest in a real PC-Express-reader...

Rob Collins
April 17th, 2009, 11:45 AM
For non-critical projects I will often just use Log & Transfer from the card and then back up the QT files. Can these files "go bad"?

Barry J. Weckesser
April 17th, 2009, 12:48 PM
Just a short question between: is the "data-proirity" and "CRC-check" from Tool-Options-menu active at any copying within clip-browser?

Especially:

- copying fresh shot clips from SDHC in USB-card reader to HDD?
- copying single clips from any drive / directory to another drive / directory?

Or is it just when using the "copy all" function when EX1 is connected via USB-cable to the pre-selected directory in Tool-Option-menu?

Last one is extreeeeeeeeeemly slow. One should invest in a real PC-Express-reader...

That is the exact question I have. You do a transfer from the SDHC card or SxS card that is only partially filled and use the "transfer all clips" of course the CRC will work if you have it checked.

What happens if you come back later and use the same SDHC card and only copy those clips that are new using the highlight/copy command or drag and drop to another folder - does the CRC work in that instance or only with "Copy All"

Mitchell Lewis
April 17th, 2009, 03:23 PM
CRC works no matter if you're copying one or all your clips. Old or new, good or bad composition. hehehe

Craig Seeman
April 18th, 2009, 07:32 AM
i've never had a problem with drag and drop. as long as your file system is structured properly there is very little chance of anything going wrong,

The average person might only get in to one car accident in a lifetime. Unfortunately lifetime ends at that moment.

If one reads this and other EX forums, the body count is certainly high enough.

Bruce Rawlings
April 19th, 2009, 06:12 AM
I have sat down quietly this weekend and "cracked" Clip Browser having not succeeded in the past. I cannot now contemplate transferring files without CRC. As Craig says it only takes one incident and that may well be one too many. For me, now that I have the workflow sorted there will be no other way of working.

Michael Maier
April 19th, 2009, 08:21 AM
Wow, this is a scary thought but I've been using the EX1 since early 2008 and I have never heard of CRC before. The scary thing is that I have been working on a long term project where we have a couple of TB in EX1 footage that are transferred and backed up to second drives but we haven't started editing it yet I surely hope we won't encounter the same problems as Peter Mee. I have always just marked all clips and dragged them into the second explore window in clip browser which was opened to the folder I wanted the clips to goß is there anything wrong with this method, if CRC is checked? I like that method because sometimes I copy individual clips to folders already containing other clips if they belong to the same sequence. Although in the very beginning I used to just copy the BPAV to where I wanted suing windows explore without clip browser and I would think this method is not recommended at all?
I just checked my clip browser settings and CRC was not checked and "priority in move" was set to "processing speed". I have now checked "data protection" in "priority in move" and also checked CRC. But under the CRC option there's a window with a path which says "copy all files to:" and I'm not sure what it means? What files? Your clips destination is chosen by you at the moment you copy right?
Also what is little code in the window clip ID?

Joachim Hoge
April 19th, 2009, 01:53 PM
Hi Michael.
I didnīt use to use the CB and just dragged and dropped the BPVAs and never had a problem. Then reading about the CB here and itīs benefits made me start to use it.

I just want to try to comfort you and say that itīs highly unlikely that you have problems with your footage, but use CB from now for the added peace of mind.

Craig Seeman
April 19th, 2009, 01:57 PM
Hi Michael.
I didnīt use to use the CB and just dragged and dropped the BPVAs and never had a problem. Then reading about the CB here and itīs benefits made me start to use it.

I just want to try to comfort you and say that itīs highly unlikely that you have problems with your footage, but use CB from now for the added peace of mind.

Applause, Kudos, (select accolade of your choice and place here)!
That's exactly the point. CRC is a seat belt. It protects you against the rare (but catastrophic) accident.

David Issko
April 19th, 2009, 03:48 PM
Wow, this is a scary thought but I've been using the EX1 since early 2008 and I have never heard of CRC before.

The CRC or Cyclic Redundancy Check has been around in one form or another since the early 1960's. Simply stated it is an error detecting code. There are a number of CRC standards. You can read more about it in Wikipedia.

Cyclic redundancy check - Wikipedia, the free encyclopedia (http://en.wikipedia.org/wiki/Cyclic_redundancy_check)

Michael B. McGee
April 19th, 2009, 07:23 PM
well well. thanks to all of you who responded. i appreciate your advice. i guess i should listen to my mom's advice,"Better safe then sorry."

cheers!

Kellen Dengler
April 20th, 2009, 11:02 AM
For non-critical projects I will often just use Log & Transfer from the card and then back up the QT files. Can these files "go bad"?

I've been wondering about this. I used Log and Transfer almost exclusively with my old HVX and noticed you could use it with SxS media as well.

I take it from reading through this that Log and Transfer does not perform any sort of CRC when importing?

If this is the case - I'm wondering what the benefit of using Log and Transfer is vs. CB?

Craig Seeman
April 20th, 2009, 11:26 AM
I take it from reading through this that Log and Transfer does not perform any sort of CRC when importing?

If this is the case - I'm wondering what the benefit of using Log and Transfer is vs. CB?

CB good for backing up. Log and Transfer good for importing. Two VERY DIFFERENT functions.

Kellen Dengler
April 20th, 2009, 12:37 PM
So you mean like backing up to multiple locations?

I understand that CB will allow you to do that. I guess what I don't get is - if you use Log and Transfer to import your clips, they are stored into your specified Capture Scratch folder. Couldn't you just back those clips up else where later to achieve the same thing CB does?

I've been using Clip Browser, but I'm just wondering what it does differently than Log and Transfer?

Craig Seeman
April 20th, 2009, 01:38 PM
CB copies and does CRC check to make sure the copy is good. That has nothing to do with Log and Transfer at all.

You need to back up your camera masters which are the BPAV folders.

What you import is rewrapped as .mov which may be very difficult to port to another non FCP system unlike the camera masters.

Kellen Dengler
April 20th, 2009, 02:01 PM
Yeah I mean typically I use CB initially and then set up my clips into FCP when I'm ready to begin my project. I just tried the Log and Transfer just to see what was left in the folder besides the clips and you are right - no BPAV folders.

I guess I didn't really realize that the clips imported via Log and Transfer are FCP compatible only. That's really good to know for future reference. Thanks!