DVD full D1 resolution is 720x576 (PAL) but you can master DVD discs without problems in Half D1 and Q1 resolutions, they are 352x576 and 352x288. They are both accepted (in MPEG2, of course, VCDs use MPEG1) for standard DVDs. SVCD resolution is 480x576. This is not accepted for DVD, where you must go from 720x576 to 352x576. For NTSC, simply change all 576 for 480 :-) Anyway, if 384x288 is enough... Yes, it's enough for mastering a DVD in Q1 (you would still have to reduce a bit) but you must decide if it has enough quality for your viewing pleasure (it's definitevely not enough for me) I'd capture at least at 352x576, to conserve the full temporal resolution (50fps) if you are going to view on a TV.
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It's a popular misconception that DVD will only accept 720x480 mpeg-2. The DVD specs even accept mpeg-1 files. However, some authoring programs (for example DVD complete) will re-encode the file if it is not 720x480 Mpeg-2. Anyways, here are the DVD specifications again (they are accurate!):
yg1968 is right. PAL DVD accepts the following: 720x576, 704x576 and 352x576 MPEG-2 with videobitrate up to 9,80 Mbit/s and 352x288 MPEG-1 with videobitrate up to 1,85 Mbit/s Recommended resolution for VHS2DVD transfer is, as lemon suggested, 352x576 @ 25fps (MPEG-2) If your VHS is progressive (no interlacing), you've got luck just encode in progressive mode. If it is field shifted (progressive but looks interlaced), apply telecide with an avisynth script to reconstruct progressive frames, and encode in progressive mode. Else, don't deinterlace, just encode in interlaced mode. For such resolution, don't go under 2,5 Mbit/s avg if you encode in progressive mode, and don't go under 3,5 Mbit/s avg if you encode in interlaced mode. Max bitrate should be the double of the average (9,8 mbit/s being max allowed bitrate for DVD) As you're making PAL DVD, you can use MP2 audio without any concerns. I suggest 256kbps Stereo (not joint stereo / 192 being minimum) if you have stereo source, or 192kbps mono (96 being minimum) if you have a mono source.
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ok thanxk for all your great information. But do you think this resolution is fine ? or should i go for diferent converter (analog -> digital) This one from dazzle is cheap but only this resolution... If i go for other models that allow 720x576 grab will this bring any improvement as vhs dont have these horizontal lines (the source) ??
VHS is said to have 240 lines. They are analogic lines, not comparable to pixels. These lines are horizontal resolution. It always haves 576 lines (480 in NTSC) of vertical resolution. Also, the 240 analogic lines (depending of the quality of the player can be more or less) do not represent 240 pixels (if it was like this, then a 240x576 resolution would be optimal). There is a teorem that says how many pixels are needed to represent X lines, if you search in the forum I think you can find it. As the important is that there are always 576 lines of vertical resolution, yes, a 720x576 resolution would improve a lot. Even a 352x576. But you are who must decide if this resolution is good enough for you. Get some grabbed images from someone with a capture card, and encode in diferent resolutions. If you cannot grab from video anywhere, I think here in the forum is a thread with grabbed samples. Then you can compare at different resolutions and decide what is enough for you.
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RE: is 384x288 enough for vhs to dvd conversion ?
