harrisoncj
Member
My favorite card is my 16 gig Hoodman RawSteel class 10 card. It's metal plated, so breaking it is one less thing I have to worry about.
Which memory cards?
- Thread starter davidwinters
- Start date
CARD ERROR!
Hi I'm hoping this is the right place to post:
I'm using two 32gig kingston 100x ultimate cards. While I've never had any problems while recording, i very often get this message: "Inconsistencies found in the image database file. Back up and recover." etc. ..
It gives me the option to recover by pressing OK - or to Cancel. I always do the latter, then turn of the cam, back up to a computer, stick it back in and do a format in the camera, and im running again. It never resulted in any actual lost data - everything was always there when I connect to a computer.
BUT as said, it happens quite often, and makes my heart jump a bit every time (!)- and of course it implies the hassle of having to bring a laptop everywhere. It always happens when it has been powered off btw, never when I just leave it on.
Any takes on what causes this? Is it my cards, my particular camera or is it a common thing??
All help is greatly appreciated!
Hi I'm hoping this is the right place to post:
I'm using two 32gig kingston 100x ultimate cards. While I've never had any problems while recording, i very often get this message: "Inconsistencies found in the image database file. Back up and recover." etc. ..
It gives me the option to recover by pressing OK - or to Cancel. I always do the latter, then turn of the cam, back up to a computer, stick it back in and do a format in the camera, and im running again. It never resulted in any actual lost data - everything was always there when I connect to a computer.
BUT as said, it happens quite often, and makes my heart jump a bit every time (!)- and of course it implies the hassle of having to bring a laptop everywhere. It always happens when it has been powered off btw, never when I just leave it on.
Any takes on what causes this? Is it my cards, my particular camera or is it a common thing??
All help is greatly appreciated!
I had that message happen once. When my old NP-f960 battery went from 30% to zero and the camera turned off without being able to finalize the video file. Just like you, the video file was still there except the camera couldn't read it.
If this is happening all the time, I'd suggest getting rid of your cards and replacing with more reliable ones. There seems to be some kind of write error happening at the end of the clip. I use the Transcend 32gb class 10 cards and havent had a problem yet.
Thank you for the quick reply. Closed my eyes and went fro the most expensive - the sandisk extreme 45mbps. Damn sure hope its works. if not it is the cam, plus im stuck with 3x32gb app 8 hours of card space.:0.
Ill report back if it doesn't work. If there is no mo trouble, I'll assume it was the card.
Ill report back if it doesn't work. If there is no mo trouble, I'll assume it was the card.
Just remember that there's a difference between MB/s and mbps.
AVCHD is around 21mbps...which is around 2.4 MB/s.
SD cards are rated at MB/s...so don't worry...any Class 10 card will work just fine. The only real reason you would want Sandisk Extremes is for the proven track record of reliability and perhaps a faster read time in a USB 3.0 card reader. Otherwise, there's no difference.
Remember, AVCHD 21mbps is only about 2.4 Megabytes/sec.
As far as the Kingston Card Error is concerned...I'm not sure why you'd even risk using those cards again. Kingston's quality is sketchy at best; dump them and get another brand.
AVCHD is around 21mbps...which is around 2.4 MB/s.
SD cards are rated at MB/s...so don't worry...any Class 10 card will work just fine. The only real reason you would want Sandisk Extremes is for the proven track record of reliability and perhaps a faster read time in a USB 3.0 card reader. Otherwise, there's no difference.
Remember, AVCHD 21mbps is only about 2.4 Megabytes/sec.
As far as the Kingston Card Error is concerned...I'm not sure why you'd even risk using those cards again. Kingston's quality is sketchy at best; dump them and get another brand.
I'm gonna recommend this bad boy, don't worry it's compatible. http://www.bhphotovideo.com/c/produ...128CRBNA133_128GB_Professional_SDXC_Card.html
Postmaster
Dark Side of the Camera
I wonder why you guys use such big cards.
I have nothing but 8GB cards, cause in a worst case scenario, I loose only 30 to 45 minutes of material (bad enough).
But risking to loose a whole day of shooting, just to save a few seconds of changing cards seems not the best idea to me.
Are you guys only shooting concerts and stuff like that?
Frank
I have nothing but 8GB cards, cause in a worst case scenario, I loose only 30 to 45 minutes of material (bad enough).
But risking to loose a whole day of shooting, just to save a few seconds of changing cards seems not the best idea to me.
Are you guys only shooting concerts and stuff like that?
Frank
Transend 8g's and 128g FMU you really cant go wrong. I've had 2 sandisk fail on me with my EX1r. I'm sure that's not indicative of all sandisk but... Transend cards which I've used in both the EX1r and EX3 and FS100 have never failed me+
and this is the biggest + $14.99 for and 8G on Amazon
Give them a try ya wont be disappointed. Oh yeah 5d Sandisk compact flash card FAIL also, just saying
and this is the biggest + $14.99 for and 8G on Amazon
Give them a try ya wont be disappointed. Oh yeah 5d Sandisk compact flash card FAIL also, just saying
??
I'm curious how you test this perceived loss of performance...It's amazing how much crazy "voodoo" there is out there. This is one of the silliest things I've ever heard.
Regarding 8GB cards, they are unusable for any long form recording (concerts, weddings, etc etc). I usually use 32GB cards and, starting next year, will be using an AC130/160 so it will be recording to 2 cards at once.
It's common in regular hard-drives, the more full they get, the slower the data rate. You can find that out by using benchmarking software like hdtach. I'm probably totally off but I just figured it would be the same with SD and CF cards.
Plus when I was shooting with a 7d, towards the end of the card, i'd get more clips that would stop recording early. I figured it was something to do with the card nearing its capacity.
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LanceOregon
Well-known member
That is not a true statement about the Sony Memory Stick Pro-HG Duo being cheaper. Right now, one can buy a 32GB Sony Memory Stick Pro-HG Duo with 30 MB speed at B&H Photo for $102
However, B&H also has a 32GB SanDisk Extreme SDHC Class 10 also rated at 30MB/s selling for only $53. That is almost half the price of the Memory Stick.
It is definitely more expensive than using SDHC cards in the same speed category.
.
Chris Johnston
Veteran
In simple form, hard drives slow down because they tend to write from the outside edge to the inside edge. since the outside (writable) edge moves by the head at a faster rate, it reads/writes at a faster rate. as the disk fills up and more data gets written, it starts writing closer to the center of the disk where the blocks move by the head at a slower rate. Cards don't have that problem.
AtticusLake
Well-known member
It's worse... much worse. Flash memory is REALLY nasty to work with... most cards can only physically write a block of 4MB or 8MB at a time. Yes, that's MEGABYTES.
The controller (the one built into the card) tries to mask this by clever use of cacheing in RAM (also built into the card). How good a job it does depends on how much RAM it has, and how sophisticated the controller is.
Sure, it's common in regular drives...a regular drive spins at a fixed rate; say, 7200rpm....as you get closer to the center of the drive, the platters get smaller and smaller while the RPM is the same. Therefore, the access time is slower than the outer, larger portions of the disk.
When you read a CD/DVD, the information on the area closest to the center will be read slower than the information in the outer part of the disc.
Solid State/CF/SD cards do not have internal spinning components and are not mechanical so these characteristics do not apply at all.
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This has nothing to do with the fact that it's a flash device. It has to do with the block size of the filesystem you're using and no, it doesn't write 4MB or 8MB at a time....the default block size for FAT32 is 4Kb.
NorBro
Major Contributor
If anyone knows Lloyd Chambers around here...he has dozens and dozens of amazing articles about all kinds of stuff.. http://macperformanceguide.com/index_topics.html
I read one a while back (regarding hard drives and SSD) that for best performance (and I hope I'm remembering this correctly)...it's good to use your regular spinning hard drives up to 50% and your SSD up to 90%.
Not sure if the same principle applies to SDHC cards.
Either way...I have always repeatedly filled up all my cards to the last minute and I have NEVER had a problem.
Knock on wood? Who cares! Because now I use one of these! haha
http://www.bhphotovideo.com/c/product/672424-REG/Sony_HXR_FMU128_HXR_FMU128_Flash_Memory_Unit.html
I read one a while back (regarding hard drives and SSD) that for best performance (and I hope I'm remembering this correctly)...it's good to use your regular spinning hard drives up to 50% and your SSD up to 90%.
Not sure if the same principle applies to SDHC cards.
Either way...I have always repeatedly filled up all my cards to the last minute and I have NEVER had a problem.
Knock on wood? Who cares! Because now I use one of these! haha
http://www.bhphotovideo.com/c/product/672424-REG/Sony_HXR_FMU128_HXR_FMU128_Flash_Memory_Unit.html