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April 9th, 2009, 11:56 AM
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#1 |
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Major Player
Join Date: Mar 2008
Location: All over, USA
Posts: 512
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download times
What download times are you getting?
Using SxS cards or your SDHC cards in an adapter when using an Express Card slot in a laptop with clipbrowser? Are download times affected much by processor speed of the computer? |
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April 9th, 2009, 12:06 PM
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#2 |
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Major Player
Join Date: Nov 2008
Location: Santa Monica, CA
Posts: 318
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hey ed,
i have a MBP that was purchased in 2007. not sure of the specs. my girlfriend has it with her on vacation right now. i use a western digital my studio 500gb 7200rpm hard drive via FW800 and i get about a GB/min. it seems slow to me cause i've heard of guys getting 2GB/min or even more. i also own a Dell desktop with quad-core 2.4ghz processor with the Sony USB reader and i think i get about 12mins/8gb card = 24mins/16gb card. SxS cards only for me. to answer your question i believe processors have a lot to do with it as well as hard drive speeds, ie: 5400rpm, 7200rpm, and of course the interface connectivity contributes, ie: usb, fw400, fw800, and eSata(not with SxS cards simultaneously of course). Last edited by Michael B. McGee; April 9th, 2009 at 12:09 PM. Reason: more info |
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April 9th, 2009, 04:16 PM
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#3 |
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Inner Circle
Join Date: Feb 2004
Location: Brooklyn, NY, USA
Posts: 3,841
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I haven't had to offload to my MBP since I started using 32GB SDHC cards.
On my Mac Pro using Sandisk 12 in 1 card reader. Two times faster than real time with CRC on in ClipBrowser Four times faster than real time with CRC off in ClipBrowser (although I always leave it on, I did this for time test). SxS is an accident waiting to happen if you have to offload during a shoot, IMHO. SxS offload to my MBP with built in Express port is about twice as fast as the above. |
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April 9th, 2009, 06:30 PM
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#4 |
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Major Player
Join Date: Sep 2008
Location: Republic of Vancouver Island
Posts: 200
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On my MBP expresscard.
7min for an 8GB download, which is about 4 times real tine with CRC on .
__________________
Any sufficiently advanced technology is indistinguishable from magic. AC Clarke |
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April 10th, 2009, 11:11 AM
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#5 | |
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Major Player
Join Date: May 2008
Location: Moab, UT
Posts: 264
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Quote:
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April 10th, 2009, 11:44 AM
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#6 | |
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Inner Circle
Join Date: Feb 2004
Location: Brooklyn, NY, USA
Posts: 3,841
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Yes, I should clarify. SxS are great. The bulk of the issues I see are human error often occurring when offloading during a shoot.
My goal is to avoid/minimize transfers during a shoot. Quote:
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April 10th, 2009, 10:35 PM
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#7 |
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Major Player
Join Date: May 2002
Location: West Central Florida
Posts: 762
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Craig, I did some transfer tests several months ago and posted the results here:
http://www.dvinfo.net/conf/972067-post5.html It will give a little info about the tranfer times/rate using "drag and drop" as well as Clip Browser's CRC protected transfers. dave |
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April 16th, 2009, 07:35 PM
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#8 |
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Major Player
Join Date: Nov 2008
Location: Santa Monica, CA
Posts: 318
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ok, i just performed some tests and the results are unbelievable/confusing. i used a 16GB SxS card filled exactly to 8.0GB of footage with about 30-1 minute clips. Two different computers were used. MacBook Pro circa 2007 and a Dell desktop with the Sony USB reader. with the MBP I used a Western Digital 500GB 7200rpm FW800 external HDD as well as the internal HDD. here are the results.
MacBook Pro 2.33GHz Intel Core Duo 2GB 667MHz DDR2 SDRAM 150GB 5400rpm HDD using Clip Browser version 1 with ExpressCard slot: 8GB-MBP= 6:30 minutes MBP HDD-WD HDD= <10 minutes 8GB-WD HDD= <8 minutes Drag & Drop method with ExpressCard slot: 8GB-MBP= 5 minutes MBP-WD HDD= 4:50 minutes 8GB-WD HDD= 4:10 minutes Dell desktop 2.4GHz Intel Core 2 Quad 3GB 800MHz DDR2 SDRAM 500GB 7200rpm HDD using Clip Browser version 2.5 with Sony USB reader: 8GB-Dell= 5:30 minutes 8GB-Dell= 10 minutes with Data Protection & CRC turned on using Clip Browser version 1 with Sony USB reader: 8GB-Dell= 5:15 minutes Drag & Drop with Sony USB reader: 8GB-Dell= 4:45 minutes so, what i found confusing was that my Dell with a USB reader was faster then a MBP with an ExpressCard slot. my results tell me that its not so much the interface/connection you use to dump/transfer footage its the processors and/or hard drive speeds that determine quick transfer times. am i wrong or right? -Mike |
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