From: rhkra...@gmail.com Date: Mon, 28 Feb 2022 09:52:35 -0500 > What has been your experience with reliability of SD cards for backup?
My explanation was ambiguous. =8~| The primary medium here is SD. The backup is optical. The oldest SD card I have was purchased about 2012. The label was NextTech. Purchased via eBay from a seller in Ontario or Quebec. It's been reformatted 2 or 3 times over the years and still works. =8~) Recently parts of some files disappeared or showed garbled information. The card has served better than I expected. Probably due for retirement. =8~) Since 2012 I've purchased three Kingston 8 GB SDs. Two are used in mobile phones; one is system store in a OLPC XO 1.5. Those SDs continue to work with no apparent difficulties. General policy. Buy only name brands: Kingston, SanDisk, Lexar & etc. Buy only from local businesses maintaining a reputation in the marketplace. Noname cards only waste time and money. Regardless of reliability of a specific medium, data preservation comes from a good backup system. =8~) Regards, ... P. -- mobile: +1 778 951 5147 VoIP: +1 604 670 0140 48.7693 N 123.3053 W