I know the site has a option to search by format (MPEG1, WMV, etc...). Ever consider a search by aspect ratio or search by vertical resolution?
In the case of aspect ratio, the more known ones would include
- 1:1, 23:20, 5:4, 4:3, 11:8, 36:25, 3:2, 14:9, 5:3, 16:9, 37:20, 2:1, 11:5, 12:5
And yes, while some are more obscure than others, I have seen stuff in virtually all of these formats. You could set it so someone searching for this could be looking for 'all at or below' or 'all at or above' the selected ratio... you might want to put the rounded decimal amount next to each aspect ratio "4:3 (1.333)".
In the case of vertical resolution, a good range that includes PAL and NTSC would include:
- 80p, 90p, 108p, 120p, 144p,
- 160p, 180p, 216p, 240p, 288p,
- 320p, 360p, 432p, 480p, 576p,
- 640p, 720p, 768p, 960p, 1080p,
Like aspect ratios, I've seen stuff in virtually all these formats.
1.000 1:1 SVCD standard. Technically, SVCD should go to 4:3, but I've seen a small number of videos use this aspect ratio.
1.150 23:20 MovieTone standard. Technically no longer used, but I've seen a small number of videos use this aspect ratio.
1.250 5:4 European container standard, and 1.222 LCD, and QCIF standard. Technically, all should go to 4:3, but videos use this aspect ratio.
1.333 4:3 VGA, SDTV, 480i, and VHS standard. Still most used standard. Sometimes called 12:9 instead.
1.375 11:8 Academy, and 35mm Full standard.
1.440 36:25 IMAX
1.500 3:2 DVD, VCD, CIF, HVGA, 35mm Still, and VistaVision standard. Technically, DVD/VCD all should go to 4:3/16:9, but videos use this aspect ratio.
1.556 14:9 Commercial standard.
1.667 5:3 WVGA, Super 16mm, and Veriscope standard. Sometimes called 15:9 instead.
1.778 16:9 FWVGA, EDTV, 480p, nHD, and Plasma standard. The most popular new standard.
1.850 37:20 35mm Widescreen. Modern Widescreen has rendered this almost unused anymore.
2.000 18:9 SuperScope, Univisium, and Superfilm standard.
2.200 11:5 70mm, Super Panavision, and Magnafilm standard.
2.400 12:5 35mm Anamorphic, CinemaScope, Panavision, Scope, and Modern Anamorphic standard. Rounded for 2.39. before about 1970 it was 2.35 (47:20).
80p Not a broadcast standard. A low bandwidth standard.
90p Not a broadcast standard. A low bandwidth standard.
108p Not a broadcast standard. A low bandwidth standard.
120p NTSC LCD handheld devices. QQVGA standard.
144p PAL LCD handheld devices.
160p NTSC LCD game devices. HQVGA standard.
180p Not a broadcast standard. A low bandwidth standard.
218p Not a broadcast standard. A low bandwidth standard.
240p NTSC LDTV, and handheld, and game devices. QVGA, and WQVGA standard. Old NTSC VCD standard.
288p PAL LDTV. Old PAL VCD standard.
320p NTSC LCD handheld devices. HVGA standard. VHS standard.
360p Not a broadcast standard. A streaming video site standard. HGA, nHD standard.
432p Not a broadcast standard. A streaming video site standard. HGA standard.
480p NTSC SDTV standard. VGA, WVGA, and FWVGA standard. Anamorphic DVD standard
576p PAL SDTV standard.
640p Not a broadcast standard. A in between standard for cut rate HDTV standard some games use.
720p HDTV standard for multiple standards organizations. DVDHD, BluRay, 720p, etc…
768p Not a broadcast standard. A hardware screen standard, XGA, and WXGA standard.
960p Not a broadcast standard. A in between standard for cut rate 1080. SXGA+ standard.
1080p HDTV standard for multiple standards organizations. BluRay, 1080p, etc…
1152p New 2k standard. Also called TRUE HD.