SD card slot on CPU for SDHC card transfers ? at DVinfo.net

Go Back   DV Info Net > Sony XAVC / XDCAM / NXCAM / AVCHD / HDV / DV Camera Systems > Sony XDCAM EX Pro Handhelds

Sony XDCAM EX Pro Handhelds
Sony PMW-300, PXW-X200, PXW-X180 (back to EX3 & EX1) recording to SxS flash memory.


Reply
 
Thread Tools Search this Thread
Old February 21st, 2010, 11:23 PM   #1
Major Player
 
Join Date: Nov 2008
Location: Santa Monica, CA
Posts: 318
SD card slot on CPU for SDHC card transfers ?

MxM claims on their website:

"never use the SD slot on the laptop to transfer your footage to your hard drive as doing so may corrupt your data and SDHC card, use any available 34 adapter or certified reader"

have you found this to be true? what are your thoughts or experiences?

thanks,
Mike
Michael B. McGee is offline   Reply With Quote
Old February 22nd, 2010, 01:46 AM   #2
Trustee
 
Join Date: Mar 2005
Location: Coronado Island
Posts: 1,452
I usually do use the SD slot + EX ClipBrowser to preview and transfer the clips to the editing system and have had no problems so far.
Some have advised turning the card's "write lock" to on to prevent the system from writing anything to the card.
__________________
Bob
Robert Young is offline   Reply With Quote
Old February 22nd, 2010, 11:27 PM   #3
Major Player
 
Join Date: Nov 2008
Location: Santa Monica, CA
Posts: 318
thanks for the "write lock" tip. i'll give it a try.
Michael B. McGee is offline   Reply With Quote
Old February 23rd, 2010, 12:58 AM   #4
Major Player
 
Join Date: Nov 2006
Location: Budapest, Hungary
Posts: 414
Quote:
Originally Posted by Michael B. McGee View Post
MxM claims on their website:

"never use the SD slot on the laptop to transfer your footage to your hard drive as doing so may corrupt your data and SDHC card, use any available 34 adapter or certified reader"
This is a practical advice. I have the lockable version of the MxM adapters and the lock part is quite fiddly and made of thin plastic. So I found the best to leave the SDHC card inside and never take out. I have the USB reader from MxM, so its not a biggie to download the files, the reader is very cheap but working well.

I assume there could really be a problem if anything will be written on the card, however the "workflow" with the reader prevents other problems, too - such as losing or misplacing a card, or mess up cards (accidental deleting) or breaking the lock.

From MxM point of view this matter definitely helps to sell more adapters. But if you compare the prices to the SxS cards it really wont matter - and now (at least in the EX1r) the MxM soultion works same as SxS, with any rate or setting. Never failed a frame while using them.
__________________
Sony XDCAM EX1r, Canon 5DMkII, Røde NTG2, Røde NT1000, Røde Stereo Videomic, Sachtler DV6 SB on Gitzo 1325V, Steadicam Merlin, Omnitracker, Hackintosh 3.5Ghz Quad 8Gb RAM
Zsolt Gordos is offline   Reply With Quote
Old February 23rd, 2010, 05:00 AM   #5
Major Player
 
Join Date: Jul 2009
Location: Hampshire, UK
Posts: 693
Quote:
Originally Posted by Robert Young View Post
I usually do use the SD slot + EX ClipBrowser to preview and transfer the clips to the editing system and have had no problems so far.
Some have advised turning the card's "write lock" to on to prevent the system from writing anything to the card.
I'm not convinced the risk of ejecting SD cards outweighs the risk of a computer system corrupting the card. Macs like nothing more than spewing invisible files all over any media inserted yet I've never had an issue and one has never been reported on here. Sony will have taken this kind of writing into account given the high proportion of Mac users using the system.

Windows on the other hand, if you have a virus then might run into problems.
__________________
Marcus Durham
Media2u, Corporate Video Production For Your Business - http://www.media2u.co.uk
Marcus Durham is offline   Reply With Quote
Old February 23rd, 2010, 08:28 PM   #6
Trustee
 
Join Date: Aug 2007
Location: Portland, Oregon
Posts: 1,177
For all we know, inserting the SD card with your left hand may also "corrupt your data and SDHC card" since they offer no evidence of WHY they say that.

I have never followed this advice and I have had no issues with my SDHC cards.
Richard Crowley is offline   Reply With Quote
Old February 24th, 2010, 11:04 AM   #7
Regular Crew
 
Join Date: May 2009
Location: Monument, CO
Posts: 109
I've only experienced this problem once. Filming a live event, 7 cameras. I was the only handheld so fortunately my footage amounted to B-roll material. One of my clips had a few minutes of corruption. I was able to salvage the footage eventually but playback of the original clip is inconsistent. Sometimes it will work but most of the time you have to skip past the corrupt portion. The sound was completely trashed for that portion of the clip. The DP wanted to download straight to his Mac in the green room and didn't want to use the USB from the camera. I've never had any other issues with these cards though.
Steve Nelson is offline   Reply With Quote
Old February 24th, 2010, 12:10 PM   #8
Major Player
 
Join Date: Nov 2008
Location: Santa Monica, CA
Posts: 318
well, it sounds like if we switch the "write lock" on then we shouldn't have any problems. i still don't understand the argument of how using an external USB reader will avoid the CPU from writing data back to the cards as MxM's statement may be suggesting. just my guess. i use a SD card for my stills camera and when i use a USB reader with my older MBP then use the same card and reader on my PC i notice weird Mac files on the card. as of right now i think the "write lock" technique is probably the best way to go regardless of using an external reader or not.
Michael B. McGee is offline   Reply
Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

Professional Video
(800) 833-4801
Portland, OR

B&H Photo Video
(866) 521-7381
New York, NY

Z.G.C.
(973) 335-4460
Mountain Lakes, NJ

Abel Cine Tech
(888) 700-4416
N.Y. NY & L.A. CA

Precision Camera
(800) 677-1023
Austin, TX

DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > Sony XAVC / XDCAM / NXCAM / AVCHD / HDV / DV Camera Systems > Sony XDCAM EX Pro Handhelds

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 10:15 AM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2017 The Digital Video Information Network