[PetrolDave]

Or will they also accept 1GB and 512MB? Appreciate the input!

I'm using a 1GB SD card and a 128MB SD card - no problems with either.

Make sure you only use the Hi-Speed cards and NOT the Multi-Level ones.

 

[PetrolDave]

Amazon give exactly the OPPOSITE advice - because the multi-level cards are designed to store pictures where some errors may not be noticed they do not guarntee to store data 100% accurately.

Hi-Speed cards cost more because they use "traditional" 1 bit per cell memory technology, the "Hi Speed" is a side effect.

My advice as a professional electronics engineer is to only use the MLC cards for pictures - and I do follow my own advice.

 

[PetrolDave]

.. for some reason i often get corrupted files and folders and such.. they appear to copy onto the card fine, but then i go back to see if everything is set up they way i want it and there is wing-ding font and grayed out folders and fileds and all sorts of wierd things??..

This is an unwanted side effect of MLC type cards. Since several bits of, apparently unrelated, data are stored in one cell as a multi-level voltage (hence the name) the more times you change 1 bit of data the greater the risk of another bit of data becoming corrupted when the multi-level voltage is read and written back as not quite the same value.

It's storing digital data using analog voltages - prone to error and noise.

I use a 1GB (non-MLC) card attached to 3 different PCs via 2 different USB-to-SD adapters, on both USB1.1 and USB2.0. And I move and rename files and folders, in-place edit ID3 tags - treat it just like a disk drive - without any problems at all.