MicroSD card slow to access, need a software to mark bad sectors

[addysoftware]

I started having problems with my SD CARD. Sometimes when I delete large number of files, sometimes when more write operations are happened almost simultaneously, the card get stuck and opertaing system (first Explorer, and after that all system including Task Manager) freeze; except the mouse pointer.

The SDCard is quite big and expensive, I would like to know if exist a software which can make "surface" test on it like exist for HDD's (read 1 block, keep data in memory, write block with random data, and if block has response delay, to reallocate block and declare it bad in FAT; and next write back initial data to another free block); there was long time ago a program which make almost these on HDD's (called HDDRegenerator) but that was an entirely different approach, because of different way magnetic storage works.

Even if some data is lost, is not a problem - I have backups. I'll need to recover the media, not data, for it to work maybe a year more, but I don't care if data is lost in the process - still I look for a software which tries to not destroy data in the process because the time involved and the fact that most of the SD Card space is still in good condition.

 

[Phillip Corcoran]

Easiest (and most sensible) fix is simply to replace the card - - there is no point struggling with a card that is evidently failing when new ones are relatively inexpensive. Who wants to be saving stuff on an unreliable memory card anyway :/

 

[addysoftware]

Yes, ultimately; but most of the card (98-99%) is yet in good state, except for some small portions where is weared. And I think it must exist a software to do what i said..

 

[USAFRet]

Any SD card that started doing that is automatically suspect.
Whatever software magic dust you sprinkle over it can't guarantee it to "work maybe a year more".

Bad sectors never get better, only worse.

 

[addysoftware]

I disagree [in my strict situation only!]. The card is used as a secondary drive in a small netbook which have 32GB eMMC instead of HDD or SSD; I had relocated (making junctions) some of the folders from c:\ to this card, using it as a secondary HDD; unfortunately some of the folders has been used by write-intensive apps (Firefox userdata, but NOT the cache, which I relocated at the same time on a RAM disk; also Microsoft windowscommunicationapps\tempstate\Content.MSO temp files; any way, things which I didn't know they were write-intensive, but now I relocated all the sensible spots on ramdisk as well) which so destroyed some spots of the card.

Still I want so software to declare bad the weared spots, because the rest of the card, as I said, is just fine and I continue to use it and behave absolutely normal; but I cannot delete the folders and data which contains small portions of weared spots because otherway these will be used again as normal write space and introduce huge delays in normal operations. This leaves me with some 2-3GB not usable on my card, which most of it is still good.

 

[USAFRet]

I also have a little netbook 2-1 thing (Asus Transformer) with the same 32GB eMMC C drive, and a 64GB (micro)SD card as the secondary D drive.

It does not matter how you're using it for and for what

An SD or microSD card that is crapping out is still crapping out.