PAL to NTSC?

[redfive19]

Are there any plans to add functionality to convert PAL DVD's to NTSC? I bought the Ali G In Da USA dvd from Amazon UK and it only plays on my Apex. My friends want to borrow it, but they can't play PAL. I know this is probably FAR OFF but just wanted to know if there was any chance of it. Thanks jdobbs!

-redfive

[jdobbs]

Your right, it would be after I get past all the fixes and high-demand enhancements. But I can see that happening eventually. I'd like to make everything possible as long as it doesn't complicate standard usage.

[SeeMoreDigital]

What about just converting the video format only? ie: not changing the frame rate!


Cheers

[scharfis_brain]

What about just converting the video format only? ie: not changing the frame rate!

I doubt, that 720x576@29.97 fps or 720x480@25fps would ever work in any DVD SAP.

this would be to nice to be the thruth

[Joergen]

It's all about timing the framerate to the fields of the TV.

Some players already have the option to force 50/60hz for ANY content, this just leads to jerky image cause it cant sync with the framerate.

[SeeMoreDigital]

Originally posted by scharfis_brain
I doubt, that 720x576@or 720x480@25fps would ever work in any DVD SAP.

this would be to nice to be the thruth I used Adobe Premier to generate some Mpeg2/VOB 29.97fps NTSC 720x480 clips to 29.97fps PAL 720x480 and 720x576, some time ago. They worked OK with my Xcard but 'stupidly' I did not bother trying them with anything else - ie: an stand-alone DVD player.

Can anybody else try?


Cheers

[scharfis_brain]

but I doubt, that any TV can handle 625 lines at 60fps or 525 lines at 25fps.


some short calculations:

normal PAL has 625 lines and 50 fields/sec (312.5 lines per field)
this makes a horizontal frequency (f_h) of 50Hz * 312.5 = 15.625 KHz

normal NTSC has 525 lines and 60 fields/sec (262.5 lines per field)
this will end in 60Hz * 262.5 = 15.75 kHz , which is very close to PAL's f_h.

now lets take a look to PAL@60Hz:
60Hz * 312.5 = 18.75 kHz. this is over the allowed frequency!

the opposite occurs with NTSC@50Hz:
50Hz * 262.5 = 13.125 kHz. this is under the allowed frequency!

both values differ about 17% from the standard values.

I doubt, a TV would display this.

Please, remind, that a TV is a fixed frequency monitor (like a Sun-Workstation Monitor)

[SeeMoreDigital]

Modern TV's and DVD players are quite clever devices... so without giving it a go... who knows for sure what will happen!


Cheers