Help DVD-R wont play on Sharp SD PX15H

[Sparax]

Hi everyone

I need some help i have a Sharp SD PX15H System that wont play any of my dvd-r Discs although the manual says that it is capable of doing so.

Here is my method of Burning my DVD-R Movies

1. start "Nero - Burning Rom"
(If you have more than 1 burner, you have to choose "Recorder"
on the top bar & then "choose Recorder".
click on your dvd-burner and then on "OK")

2. on the top bar choose "File" & then "New..."

3. in the top-left-box choose "DVD" & then "DVD-ROM (UDF/ISO)"
(don't choose "DVD-Video"!!!)

4. "Multisession" -> select "No Multisession"

5. "ISO" -> select "ISO Level 1" & "ISO 9660"
all other points have to be unchecked!

6. "UDF" -> check the point "Force DVD-Video compatibility mode" (for X-Box Only)

7. "Label" -> at the point "Volume Label" you now enter your DVD-titel
all other fields have to be blank

8. "Dates" & "Misc" -> leave both as they are by default

9. "Burn" -> only check write

10. click on "New"

11. select your "AUDIO_TS" & "VIDEO_TS" folders in the right browser
and drop them into the left browser

12. on the top bar choose "File" & then "Write CD..."

13. insert a blank DVDr into your DVD-burner now and click on "Write"

This method works on my other standalone Player a (yamada)

Can anyone tell me what is stopping the Sharp SD PX15H from playing them or point me to a firmware flash that will allow them to play

Thanx for any help