DavidJohn said...skebstebamal said...
what do u mean "format" dont u just delete the old files and stick the card back in ?
I'm not sure how it all works but I think when you just delete the original files are still there (somewhere in the background) and with the necessary software the files can be retrieved (even after it's been deleted).. I think the more you just delete the total max of free space gets less and less.. Formatting deletes everything forever and leaves the max amount of free space.... Something t
Like that..

I also find that when I delete files on my digital camera it takes a few seconds to do. When formting its done in about one or two seconds... Much quicker.
DJ
Delete and format both actually leave the files on the card. Delete allows you to delete individual files from the file system of the card. Format deletes the entire file system on the card.
Think of the file system like the index of a book, when you remove the entry from the index you are telling the device it can use that space to write new data. Both deleted files and formatted cards can be recovered as after both delete and format the data is still there. I recovered some very important accounting files from a formatted hard drive a few years back, was actually a pretty easy process.