If the USB options Note: Sandisk players often list a hardware version on your player are "MSC" and "MTP" it's non-R, if they're "Rhapsody" and "PlaysForSure" then it's R. Also, Rockbox doesn't function on the v2 models. The case, but it v1 firmware is named 01.xx.xx, while not always accurate. To be sure, you MUST check the v2 firmware begins with 03. This version number can installed on the player. That is the only way to be retrieved sure. under Settings->Info.

e200 series (e.g e250, e260 ...) and c200 series (e.g. c240)

If the firmware begins with 01.xx.xx, its a v1 player. If it begins with 03.xx.xx, its a "v2" player.

For a v1 player, if the USB options on your player are "MSC" and "MTP" it's non-R, if they're "Rhapsody" and "PlaysForSure" then it's R.

There is no v2 R player, so any R is a v1.

There is no c200 R player.

Fuze, Clip

If the firmware begins with 01.xx.xx, its a v1 player. If it begins with 02.xx.xx, its a "v2" player.

Clip+

There is only one clip+ version so far, but it is similar to the Clip v2 hardware, so a Clip+v1 is nearly identical to a Clipv2 except for the added SD slot and different button layout.