I would like to update two of these players but can not find any thing for this model.
both are made in china. both bought in england.
I have downloaded audiobooks from “Librivox” but they are not recognised by “Audible”
Anyone know anything to help
I’m not sure if the c200 series supports Audible or not. These are ancient and rather low-end players. There were 2 hardware versions like the e200 series. In that series (e200), only the v2 model worked with Audible if I remember correctly. This might also be true of the c200 series. You should check with Audible if this is a supported player or not.
You can find the firmware updates for all Sansa players (including both versions of the c200 series) in the Sansa Firmware Thread.