Reversing Fields When Capturing With a ATI AIW

[howdy94]

In one of Lordsmurf's guides he mentions that the fields need to be reversed when transcoding the video after capturing with an ATI capture card. What is the reasoning for that? If I don't do it would the video be acceptable? Why transcode to reverse fields if it's not necessary?

[spiderman2k1]

Hi what transcoder are you useing? I did a laserdisc capture with my Dazzle 2 of Star Wars and use DVD2ONE 123 and movie only with constant ratio compression mode and it came out like crap. Then tried Clone DVD came out very good. The file I was trancoding was nine gig's. You can also try IC7. I tried DVD shrink but for some reasion it was saying file at the end was copy protected. I made the file my self and do not recall putting copy protection in LOL there a new version of dvd shrink so that one might work. Also thee www.dvd2dvd-r.de then alway's TMPG for encoding.

[pixel]

If you are re-encoding it is necessary because your computer would probably be too slow to capture real-time DVD quality MPEG2.

Some programs swap the fields when they are re-encoding so you need to tell them the field order is the opposite, and the program sets it right when encoding. (I hope you understood that )

But as he has said and his updated page, some programs don't need this because they can encode them properly.

[howdy94]

How do I know if the program I'm using (MMC 8.5) is swapping the fields or not? Basically how can I tell if it's right?

[pixel]

Well MMC 8.5 just catpures, it doesn't swap the fields. (It captures in Field B)

It is your encoding/authoring program that can swap fields. You can't check it on a PC because of the way the video is displayed on a PC monitor.

The best way to check it is to invest in some DVD-RW's and author with different programs and see if it plays OK on your TV.