64 GB Compact Flash Card Update at DVinfo.net
DV Info Net

Go Back   DV Info Net > The Tools of DV and HD Production > External Video Recording Solutions > Convergent Design Odyssey
Register FAQ Today's Posts Buyer's Guides

Convergent Design Odyssey
...and other Convergent Design products.

Reply
 
Thread Tools Search this Thread
Old October 23rd, 2009, 10:29 AM   #1
Convergent Design
 
Join Date: Apr 2005
Location: Colorado Springs, CO
Posts: 869
64 GB Compact Flash Card Update

We have been testing the 32 GB and 64 GB PhotoFast 533X cards, available from Photofast Compact Flash* SDHC Class 10 CFAST CF Flash Cards So far all the tests have been very positive. Using our current firmware 1.0.112, both cards work at 160 Mbps. Using our revised write algorithm (to be released in the next firmware update), both cards work fine at 220 Mbps. The cards are reasonably priced: the 32GB card is $149, while the 64GB card sells for $299.

The PhotoFast cards should be fine for usage outside MAC Leopard. We will be testing a number of cards over the next several weeks to determine how well they hold up with MAC Leopard and Snow Leopard. You should always consider backing up your CF cards to another device, such as the Nexto drive, before inserting into a PC/MAC.

Next week we should receive a 64GB card from Pretec, which is also speced to operate at 220 Mbps level. They have also indicated at a 128GB card should be available in about one month.

Two 64GB cards will support 2.6 Hours @100Mbps or 5.3 hours @50 Mbps.

Best-
__________________
Mike Schell
Convergent Design
Mike Schell is offline   Reply With Quote
Old October 23rd, 2009, 11:01 AM   #2
Regular Crew
 
Join Date: Jun 2007
Location: Los Angeles, CA U.S.A.
Posts: 146
128GB "days" away???

I just LOVE this runaway train.

Great news, Mike.
Daniel Symmes is offline   Reply With Quote
Old October 23rd, 2009, 11:51 AM   #3
Major Player
 
Join Date: Jul 2009
Location: Rancho Santa Margarita
Posts: 590
Just tell us what the cards are and we'll go buy some and take our chances :-)
Aaron Newsome is offline   Reply With Quote
Old October 23rd, 2009, 12:56 PM   #4
Convergent Design
 
Join Date: Apr 2005
Location: Colorado Springs, CO
Posts: 869
Quote:
Originally Posted by Aaron Newsome View Post
Just tell us what the cards are and we'll go buy some and take our chances :-)
Hi Aaron-
OK, they are the Photofast 32GB and 64 GB 533X cards ($149/$299) available from dvnation.com

Cheers-
__________________
Mike Schell
Convergent Design
Mike Schell is offline   Reply With Quote
Old October 23rd, 2009, 01:08 PM   #5
Major Player
 
Join Date: Jul 2009
Location: Rancho Santa Margarita
Posts: 590
I just realized the link is posted above!
Aaron Newsome is offline   Reply With Quote
Old October 23rd, 2009, 02:11 PM   #6
Major Player
 
Join Date: Jul 2008
Location: Melbourne, Australia
Posts: 393
Thanks for the update Mike.
__________________
David Issko
Edit 1 Video Productions
David Issko is offline   Reply With Quote
Old October 23rd, 2009, 04:00 PM   #7
Inner Circle
 
Join Date: Jun 2003
Location: San Jose, CA
Posts: 2,222
Why does this flash sell for less? Is it "floor sweep" from the production runs of the 600x parts?
Gints Klimanis is offline   Reply With Quote
Old October 23rd, 2009, 04:26 PM   #8
Regular Crew
 
Join Date: Jun 2007
Location: Los Angeles, CA U.S.A.
Posts: 146
I guessed a few days ago what brand was being tested ("$299 CF 64GB" is easy in Google).

SanDisk is simply the top dog. So how long with these cards last? That's often one the big differences between brands.

Kinda like the new SxS "1" cards that aren't supposed to last as long.
Daniel Symmes is offline   Reply With Quote
Old October 23rd, 2009, 06:13 PM   #9
Inner Circle
 
Join Date: Jun 2003
Location: San Jose, CA
Posts: 2,222
After a discussion with an ex-San Disk employee, I've learned that companies such as Pretec or Transcend are retail outlets for Toshiba and Samsung flash memories, which sell only to OEMs. All are involved with each other via cross-licensing of intellectual property. While he will not discount the notion of "binning" and reselling lower quality products, he tells me that these retail companies are simply very efficient in contracting for extra capacity at fabs or purchasing excess product that the manufacturers are unable to sell at a desired price. A major concern is the # of levels in their parts. 4 levels have more issues with data than 3 or 2 or even single level parts. He said that the cells in the x3 and x4 parts have only a couple hundred write cycles, and the chip firmware deals with spreading the data around. Thus, the parts will wear out and slow down with time, and this is worse with more levels. Worse yet, data integrity is an issue.

Also, what we are seeing in the CF card space with speed increases is the use of parallel storage with a controller writing to two or more flash chips in parallel. SanDisk Extreme IV was sold as 45 MB/second a short while ago. Today, SanDisk Extreme Pro does 90 MB/Second.

Last edited by Gints Klimanis; October 24th, 2009 at 12:41 PM.
Gints Klimanis is offline   Reply With Quote
Old October 23rd, 2009, 06:24 PM   #10
Inner Circle
 
Join Date: Dec 2002
Location: Augusta Georgia
Posts: 5,421
Dear Gints,

I recommend purchasing lifetime waranteed products.

We are still qualifying the cards. It is easy for us to put quite a bit a wear on the cards by recording to them all night long for weeks.

We could also develop special test routines to attempt to wear out a card.
__________________
Dan Keaton
Augusta Georgia
Dan Keaton is offline   Reply With Quote
Old October 23rd, 2009, 06:48 PM   #11
Inner Circle
 
Join Date: Jun 2003
Location: San Jose, CA
Posts: 2,222
Dan, I buy top of the line Sandisk CF for my DSLR work. For my EX1, I've tried Transcend with one unexplained error. Are you recommending Pretec,Transcend, Lexar et al in addition to Sandisk?
Gints Klimanis is offline   Reply With Quote
Old October 23rd, 2009, 08:16 PM   #12
Trustee
 
Join Date: Sep 2006
Location: Montreal, Quebec, Canada
Posts: 1,138
128 GB CF Card Media !

Quote:
Originally Posted by Mike Schell View Post
They have also indicated at a 128GB card should be available in about one month.

Best-
....A 128 GB CF card ? Yes ! With Four of those babies in my Flash XDR I could shoot full uncompressed with a half a Terrabyte of memmory ;-) Sweet !
Mark Job is offline   Reply With Quote
Old October 24th, 2009, 12:03 AM   #13
Inner Circle
 
Join Date: Dec 2002
Location: Augusta Georgia
Posts: 5,421
Quote:
Originally Posted by Gints Klimanis View Post
Dan, I buy top of the line Sandisk CF for my DSLR work. For my EX1, I've tried Transcend with one unexplained error. Are you recommending Pretec,Transcend, Lexar et al in addition to Sandisk?
Dear Gints,

We like Transcend; We just can't recommend them until the issue with Mac Leopard is fully resolved.

Pretec cards have not been qualified.

Lexar 300x UDMA cards have been qualified.

The cards that we have qualified and recommend are always listed in our manual, which is available for download from our website: www.convergent-design.com
__________________
Dan Keaton
Augusta Georgia
Dan Keaton is offline   Reply With Quote
Old October 24th, 2009, 12:05 AM   #14
Inner Circle
 
Join Date: Dec 2002
Location: Augusta Georgia
Posts: 5,421
Quote:
Originally Posted by Mark Job View Post
....A 128 GB CF card ? Yes ! With Four of those babies in my Flash XDR I could shoot full uncompressed with a half a Terrabyte of memmory ;-) Sweet !
I would not get too excited until we are able to test the 128 GB card, and learn the price and performance.
__________________
Dan Keaton
Augusta Georgia
Dan Keaton is offline   Reply With Quote
Old October 24th, 2009, 04:38 AM   #15
Major Player
 
Join Date: Jul 2008
Location: Melbourne, Australia
Posts: 393
Quote:
Originally Posted by Gints Klimanis View Post
Dan, I buy top of the line Sandisk CF for my DSLR work.
And I bought Sandisk Extreme III 32Gb as recommended for my nano. The initial outlay is high but I have recorded dozens of times to these cards without failure thus far and I certainly do not expect any failures either. Total confidence in both products. Only the best for the best.

By the way, I really like reading your posts Gints.

Best wishes
__________________
David Issko
Edit 1 Video Productions
David Issko 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...

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

Scan Computers Int. Ltd.
+44 0871-472-4747
Bolton, Lancashire UK


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 > The Tools of DV and HD Production > External Video Recording Solutions > Convergent Design Odyssey


 



All times are GMT -6. The time now is 11:07 PM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2024 The Digital Video Information Network