Does SD Card speed matter?
Thread Starter
Advanced
Joined: Jan 2008
Posts: 69
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From: Pasadena CA
Does SD Card speed matter?
I went out to buy an SD card for my 2015 that will be built next week. When I got to the display I saw many speed options, with increasing prices for increasing speeds. Can the Corvette infotainment system take advantage of the faster speeds? Or would any old card do? What about the PDR?
They were cheap enough that I just went with a mid-range 320X/48MB/sec card to start with, but I wouldn't mind getting a faster one if it will help performance -- especially if it needs to re-index every time the car starts.
They were cheap enough that I just went with a mid-range 320X/48MB/sec card to start with, but I wouldn't mind getting a faster one if it will help performance -- especially if it needs to re-index every time the car starts.
Melting Slicks
Joined: May 2008
Posts: 2,162
Likes: 114
From: Prosper, TX
Don't think you'll see much (if any) speed differences. Recording at less than HD shouldn't be much of a task for any modern SD card. That being said, it doesn't cost much more for a Class 10 card which you may want to use in other devices later.
Race Director
Joined: Feb 2014
Posts: 12,243
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From: Center of the Universe, Alabama
The higher the class number, the faster the card can read/write. This gets to be important in cameras, especially in taking high resolution pictures (and could be an advantage with the PDR, I'm not familiar with it's specs). For audio playback, a class 6 will work just fine but for $5 more, get the class 10.
In the photograph above the class is the "10" in a partial circle.
In the photograph above the class is the "10" in a partial circle.
Drifting
Joined: Mar 2013
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I have found some SD cards just won't work. The two piece kind I have had no luck with. I now have a 32GB class 10 one piece card and it seems to be working well now.
This is what is in my car and working for me in my PDR..
http://www.ebay.com/itm/New-32GB-SDHC-Class-10-Flash-Memory-Card-32G-SD-HC-SDXC-Ultra-High-Speed-Camera-/281363658449?pt=LH_DefaultDomain_0&hash=item418294b6d1
This is what is in my car and working for me in my PDR..
http://www.ebay.com/itm/New-32GB-SDHC-Class-10-Flash-Memory-Card-32G-SD-HC-SDXC-Ultra-High-Speed-Camera-/281363658449?pt=LH_DefaultDomain_0&hash=item418294b6d1
Last edited by ArcticC7; Feb 18, 2015 at 08:35 PM.
Racer
Joined: Feb 2014
Posts: 308
Likes: 1
From: Moore OK
St. Jude Donor '15
Yes Rick the manual calls for a Class 10 for the PDR. Not sure about audio, but for a few dollars more I will get mine all the same. Must be Fat 32 formatted!
Last edited by DocGuy; Feb 18, 2015 at 08:22 PM. Reason: Additional info
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Racer
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From: Jacksonville FL
E-Ray, 3LZ, ZER, LIFT
Joined: Sep 2007
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From: NE South Carolina
I went out to buy an SD card for my 2015 that will be built next week. When I got to the display I saw many speed options, with increasing prices for increasing speeds. Can the Corvette infotainment system take advantage of the faster speeds? Or would any old card do? What about the PDR?
They were cheap enough that I just went with a mid-range 320X/48MB/sec card to start with, but I wouldn't mind getting a faster one if it will help performance -- especially if it needs to re-index every time the car starts.
They were cheap enough that I just went with a mid-range 320X/48MB/sec card to start with, but I wouldn't mind getting a faster one if it will help performance -- especially if it needs to re-index every time the car starts.
Last edited by JerryU; Feb 19, 2015 at 01:22 AM.
Race Director
Joined: Feb 2014
Posts: 12,243
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From: Center of the Universe, Alabama
Most cards are pre formatted but there are more than one format (different types of cameras use different formats). The Vette likes the FAT32 format. If you don't know, just stick it in a computer & reformat it choosing FAT32.
Melting Slicks
Joined: Jun 2004
Posts: 2,130
Likes: 54
From: Granbury, Pecan Plantation TX
If you want to format a SD card that is 64Gbs or above, Windows can not do it alone, you will need to find a utility (Search the net) called guiformat and it will do the trick.
Racer
Joined: Feb 2014
Posts: 308
Likes: 1
From: Moore OK
St. Jude Donor '15
Will the car accept a 64 GIG Sd Card? I am going to Best buy today to get me a few SD cards for the car. I would prefer the 64 over the 32 for the PDR, but all I have seen says 32 gig...
Melting Slicks
Joined: Apr 2002
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From: Tellico Plains Tennessee
Le Mans Master
Joined: Jun 2000
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From: Indiana
To answer the original question .. yes .. speed matters. Get a class 10 card ... the benefits are obvious when a) writing songs to the card and b) when the car indexes the contents in order to show the onscreen data ..
Racer
Joined: Feb 2014
Posts: 308
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From: Moore OK
St. Jude Donor '15
Has anyone tried NTFS format? The owner's manual for my 2015 says, on page 20 of the infotainment system, "Supported file systems are FAT32 and NTFS." I think I'll try the NTFS format and see what happens. This file system has some advantages over the older FAT32, though I can't remember what they are at the moment.
I think the difference is the Infotainment v the PDR system itself. The OM page 7-1 only gives an option for a FAT (File Allocation Table) 32 for the PDR.
However I agree,having done a brief search on the ole interweb, it seems that the New Technology File System (NTFS) is better and faster in PC machine, however it is not very compatible with Linux or Mac machines. Since the Infotainment is PC based (I Believe) that should not be a problem, unless you are using a MAC at home...
I am planning to buy the same SD Card for the audio and formatting the same for interoperablity with both systems.
Hope this helps,
Advanced
Joined: Feb 2015
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From: Markham Ont
Has anyone tried NTFS format? The owner's manual for my 2015 says, on page 20 of the infotainment system, "Supported file systems are FAT32 and NTFS." I think I'll try the NTFS format and see what happens. This file system has some advantages over the older FAT32, though I can't remember what they are at the moment.
Thread Starter
Advanced
Joined: Jan 2008
Posts: 69
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From: Pasadena CA
I appreciate the comments about class 10, and I did get a class 10. But there appear to be multiple speeds of class 10, too. For example, one poster posted a picture of an 80 MB/s card as class 10. But mine is only 48MB/s. Would it be better if I spent the extra money and got an 80 MB/s or higher class 10 card?
Safety Car
Joined: Sep 2006
Posts: 4,364
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From: Greer, SC
NTFS is Microsoft format and is only compatible with newer windows operating systems. An SD card formatted with NTFS will not work in the PDR or most other non Microsoft products.
Most 32GB SD cards come formatted with FAT32. 64GB and larger cards typically come formatted in exFAT. The PDR will not read exFAT formatted cards either. You can reformat a 64 or 128 GB card to FAT32 with a number of different software products.
Just keep in mind 32GB SD cards are cheap. 64's are coming down in price but 128's are FAR too expensive at this point.
Most 32GB SD cards come formatted with FAT32. 64GB and larger cards typically come formatted in exFAT. The PDR will not read exFAT formatted cards either. You can reformat a 64 or 128 GB card to FAT32 with a number of different software products.
Just keep in mind 32GB SD cards are cheap. 64's are coming down in price but 128's are FAR too expensive at this point.
Racer
Joined: Feb 2014
Posts: 308
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From: Moore OK
St. Jude Donor '15
I appreciate the comments about class 10, and I did get a class 10. But there appear to be multiple speeds of class 10, too. For example, one poster posted a picture of an 80 MB/s card as class 10. But mine is only 48MB/s. Would it be better if I spent the extra money and got an 80 MB/s or higher class 10 card?
Best Buy guy says the hgher speed is better for music...dont know if that means it doesn't matter for video or what...
IMHO, I would go get the higher MB/s if I were you...