If I use a 64 GB micro-SD card in a dashcam only rated for a 32 GB card, I know the dashcam will only recognize ~32 GB (slightly less, actually) of this card. But, as sectors go bad, will the cam recognize only the ~32 GB minus the lost sectors, or, will it begin to use previously unused / recognized sectors, maintaining useable memory close to 32 GB?
—
Sounds like the 32 GB is an addressability limit of the dash cam, so, as you noted, you can put in a bigger card, but the cam wont use then extra space.
As to readability, all SSD storage already has extra cells in the device and it manages bad sectors and worn out sectors automatically. So if you by a 32 GB drive, it actually has more storage already onboard as “spares” as sectors go bad. So getting a bigger drive really doesn’t buy anything in this case. The more critical factor, is probably the reliability and speed of the particular SD card.
Well, I guess the question is whether the extra 32 GB of cells (approximately) in the 64 GB card get managed into useable space as sectors in earlier use go bad?
Or, maybe “other stuff” goes bad sooner? A while back I tossed an old card that developed issues with the contacts.
BTW, In this case the 32 GB card has a 2 yr. warranty and the 64 GB card has a 5 year warranty (and the 128 GB and 256 GB) have 10 year warranties.)
It will not be able to use that SD card at all because the filesystem will not be able to handle the large entries in the “File Allocation Table”.