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Aaugh, forgot to set the followup-to. Please followup-to comp.hardware.
Sorry about that! "Joshua Beall" wrote in message news:PUo_c.1446$PK3.577@trnddc08... Hi All, I don't know much about engineering of flash memory, but I have an SD card that always seems to go on the fritz when it fills up to a certain point. It's when I get around 15megs of data on it, then it goes nuts. If it's in my Pentax Optio 550, the whole camera freezes and I have to pull the battery out to get the camera to respond. If it's in my Canon Optura 20, it spends forever trying to write data to the card, and then gives a "card write error." If it's in my Sharp Zaurus, it takes forever, then gives me a "card I/O error" message. I am wondering, is there any way to format a SD card, similar to the way you format a regular disk, and block off the bad sectors, so that the rest of the disc is still usable? Or anything like this? The "format" commands in my camera and camcorder did not do seem to help. Thanks for any help! -Josh |
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SD card is having trouble - is there a way to block out bad sectors
Hi All,
I don't know much about engineering of flash memory, but I have an SD card that always seems to go on the fritz when it fills up to a certain point. It's when I get around 15megs of data on it, then it goes nuts. If it's in my Pentax Optio 550, the whole camera freezes and I have to pull the battery out to get the camera to respond. If it's in my Canon Optura 20, it spends forever trying to write data to the card, and then gives a "card write error." If it's in my Sharp Zaurus, it takes forever, then gives me a "card I/O error" message. I am wondering, is there any way to format a SD card, similar to the way you format a regular disk, and block off the bad sectors, so that the rest of the disc is still usable? Or anything like this? The "format" commands in my camera and camcorder did not do seem to help. Thanks for any help! -Josh |
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"Joshua Beall" wrote in message
news:PUo_c.1446$PK3.577@trnddc08... Hi All, I don't know much about engineering of flash memory, but I have an SD card that always seems to go on the fritz when it fills up to a certain point. It's when I get around 15megs of data on it, then it goes nuts. If it's in my Pentax Optio 550, the whole camera freezes and I have to pull the battery out to get the camera to respond. If it's in my Canon Optura 20, it spends forever trying to write data to the card, and then gives a "card write error." If it's in my Sharp Zaurus, it takes forever, then gives me a "card I/O error" message. I am wondering, is there any way to format a SD card, similar to the way you format a regular disk, and block off the bad sectors, so that the rest of the disc is still usable? Or anything like this? The "format" commands in my camera and camcorder did not do seem to help. Thanks for any help! -Josh So far as I know a computer treats a piece of compatible flash memory just as it does a removable disk drive -- format and all the other functions work on it (at least the Addonics flash reader and Mitsumi reader/floppy I've used on my more modern systems have). I just got done formatting a 128mB CF flash card in the Mitsumi within the hour. Does your camera have a format function built in? My Canon G1 has such a function and I suspect that it might be capable of detecting and locking bad sectors -- certainly nothing to lose in trying. Of course, if it doesn't work flash memory prices are at an all-time low right now and I just bought a 512mB CF card at a local store for $80 this afternoon so you might want to consider a replacement. -- John McGaw [Knoxville, TN, USA] http://johnmcgaw.com |
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