Hello Steve, Yes you can. I can't remember who it was, but I was sent the following which I saved for future reference. ;';# Hold down keys 2, 6 and 8 whilst turning the Stream on. You will then be placed in a menu and you use 8 or 2 to move through it. One of the options is to format the internal memory. You'll lose any podcasts, radio stations, saved encyclopedia articles and bookmarks, but the firmware will be fine. The SD card won't be affected and Audible should be fine as the authorisation file is stored on the SD card. Best wishes, Clive Pallett ** To leave the list, click on the immediately-following link:- ** [mailto:access-uk-request@xxxxxxxxxxxxx?subject=unsubscribe] ** If this link doesn't work then send a message to: ** access-uk-request@xxxxxxxxxxxxx ** and in the Subject line type ** unsubscribe ** For other list commands such as vacation mode, click on the ** immediately-following link:- ** [mailto:access-uk-request@xxxxxxxxxxxxx?subject=faq] ** or send a message, to ** access-uk-request@xxxxxxxxxxxxx with the Subject:- faq