laserdisc to dvd anamorphic

[computerchuck]

I was wondering how to go about taking a mpeg2 dazzledvcii capture of a widescreen laserdisc and make it anamorphic for the dvd burner. If you guys can't answer this one, then I've lost all hope on this web forums usefullness.

[VidGuy]

You could take it in at the highest resolution of the dazzle - resize the movie portion and re-encode it, but I'm not sure that would give you
any quality improvement, which is the whole point of anamorphic.

You'd need something to "unletterbox it" prior to video capture to do that.

[computerchuck]

any ideas on how to do that?

[jeex]

i need to know how to make my 8mb simm in to a 1gigabyte rambus ram module... and i quote "If you guys can't answer this one, then I've lost all hope on this web forums usefullness."

[computerchuck]

Jeex,
nobody likes a smart*ss. It was a simple question. can't help if you don't have a dvd burner or have the ability to turn your pc into a pvr.

[jeex]

smartass? well ****, i guess no one likes you then... especially with comments like "If you guys can't answer this one, then I've lost all hope on this web forums usefullness."

[computerchuck]

got your attention didnt it bitch.

[jeex]

do you suck your dads dick with that mouth too?

[computerchuck]

why? got too much time on your hands? need something else to jack off to? and by the way, if you can't answer the original question on anamorphic dvd technology (big word but try) then don't comment on your sorry social life or anyone elses. End of Line.

[shardison]

Is the widescreen laserdisc really anamorphic to begin with? If it is, you'd need a way to get at the raw data for conversion to mpeg2. I'm sure that can't be done at home. If it isn't anamorphic, then it's just a letterboxed 4:3 and you have to just treat it that way. There's nothing to be gained by capturing at anything over 640X480, so cropping the captured image (minus bars) and stretching it to 480 during conversion to DVD mpeg2 anamorphic will only degrade the video.

So, yeah, you can do that with TMPGEnc. But you really don't want to.


EDIT: laserdisc video is an analog format. Only the sound is digital. Sorry, no true anamorphic laserdisc to DVD for you.

[computerchuck]

I was just trying something new. Thanks for the help. I am still satisfied with the capture I got. Sure beats converting the avi. Don't miss my pinnacle dc10. Can't believe I waited almost a year for xp drivers. By the way, did they ever make xp drivers? Haven't checked lately. Their site used to be my homepage. Now VCDHELP is my homepage.

[khelms]

I don't think you can do this. Anamorphic basically takes a widescreen image and squeezes it horizontally to fit into a 4x3 picture. The DVD player, when set to widescreen output, unsqueezes it back to 16x9. When the studios produce an anamorphic DVD, they have the truly widescreen high-resolution digital master of the movie to use as input, so they have scan lines to burn, so to speak. In your case, let's assume your widescreen laserdisc is 16x9 for example. It is only using 360 of the 480 scan lines and the top and bottom 60 scan lines are black. Your capture is not going to add another 120 scan lines of resolution that's not there to begin with, so it doesn't make sense to try and produce an anamorphic DVD from this input.

If you wanted to do it just for the heck of it, I think it's just a matter of cropping off the top and bottom 1/6 of the scan lines, then resize the picture back to 720x480. If you could capture at 720x600, then remove the top and bottom 60 lines, or capture at 720x480, crop down to 720x360, then resize back to 720x480. You should see the problem here - you're not adding any additional detail along the way, and the resizing is liable to make the picture look worse.

[therick]

when I posted this on Doom9's forum I was led here:

http://forum.doom9.org/showthread.php?s=&threadid=17792

pretty helpful...

[e.lectronick]

I have a question,

I've got the Star Wars widescreen laserdisc, and I was wondering if one could take advantage of the unused ~120 scanlines on the top and bottom of the screen by lopping them or somehow minimizing the storage space they occupy on a dvd? If I wanted to fit the entire 130+ minute film onto one DVD5 disc would it be possible to somehow compress the top and bottom bars, thus leaving more room for the actual image?
Any ideas?
Thanks,
-Erik

[therick]

Well, all I would do would be to use AVISynth's Letterbox to put clean black on the bars. Those bars don't hurt your compression. Actually they help it cause your encoder has a smaller picture to put more bits to. In short, I am not sure how you would compress the bars more than the picture...just know that with that material you can drop your average bitrate more and still achieve good quality.

[e.lectronick]

Thanks theRick,
I've been slogging through the mire of all the programs available for editing and authoring, and I keep hearing people mention AVISynth, so I guess I should listen to the consensus. I'm going to check it out.
Clean Black, eh? Good 'nuff.
-E.

[monoxide77]

msi 266 pro 2, xp1800,512ddr,440GB HD(5 drives), 24x plextor, sony dvd+rw burner,audigy ex, dazzle dvcii