Hello to all! Yesterday I have been on the road with working navigation, wanted road perfectly found. On the start of the return trip the Navi drives out again and reports “DVD can not be read, DVD insert again ” . Ok I remembered this topic of course in the forum and today first took out DVD and controlled. DVD looks like new, nevertheless carefully cleaned with microfiber cloth and special cleaner for DVDs. Same error. Now cleaning dvd inserted, says me in the display again “DVD not readable” – cleans it then nevertheless or how do I see that the DVD cleans ???????? Then Germany DVD and DVDs of other countries tries to always the same error text. What can I do now, technically not know me so, so that I want to expand something or also take out any backup without precise instruction. Is now the drive broken? have read 380 Euro or so or how can I save something. RTI is original like when buying the vehicle as a young used, EZ 07/2007 V70 II Edition Sport buy in 10/2009 the same as the DVC?