Toshiba SD R2312 CD-RW/DVD-ROM (Combo) Burner "asus wont play dvds" Questions

...asus laptop. my wife played an old vcd on it then it suddenly wont read any CDs; not even DVDs. it happened before. i had some problems with the battery so i didnt use it for almost a month the it ...

...play any DVDs. Sometimes Windows Media player won't stat. When the DVD RW is plugged to the USB port the compute wont boot. I think there is a bios upgrade but can't download it server busy message. ...