AJA LHe Plus Capture card options for VHS capture ?

[acusman]

I have an AJA LHe-Plus capture card with the KL breakout box for capturing VHS tapes. Getting good results testing the many capture formats it offers, but I'm a little confused on several. Although there is a myriad of capture options for AVC/H.264 and H.265 MP4 capture I have the following settings "allowable" for analog capture under the .MOV format:

MOV Files
Apple ProRes 422 (8 or 10-bit options)
Apple ProRes 422 HQ (8 or 10-bit options)
Apple ProRes 422 LT (8 or 10-bit options)
Apple ProRes 422 Proxy (8 or 10-bit options)
Apple ProRes 4444 (10 or 12-bit options)
Apple ProRes 4444 XQ (10 or 12-bit options)
AVID DNxHD HQ
AVID DNxHD HQX
AVID DNxHD SQ
AVID DNxHR 444
AVID DNxHR 444 12bit
AVID DNxHR HQ
AVID DNxHR HQX
AVID DNxHR LB
AVID DNxHR SQ

Mainconcept MOV:
MC DVCPRO50 NTSC

"Built-In" MOV:
8-bit YCbCR
8-bit BGRA
10-bit YCbCR
10-bit BE RGB
12-bit RGB

OTHER FORMATS
MP4 Files (interlaced videos will be captured as progressive):
AVC/H.264 Low
AVC/H.264 Med Low
AVC/H.264 Med
AVC/H.264 Med High
AVC/H.264 High
AVC/H.264 Max
HEVC/H.265 Low
HEVC/H.265 Med Low
HEVC/H.265 Med
HEVC/H.265 Med High
HEVC/H.265 High
HEVC/H.265 Max

MXF Codecs (4k/UltraHD only - ProRes HQ 8-bit BGR)):
AVID DNxHD HQ
AVID DNxHD HQX
AVID DNxHD SQ
AVID DNxHR HQ
AVID DNxHR HQX
AVID DNxHR 444
AVID DNxHR 444 12bit
AVID DNxHR LB
AVID DNxHR SQ

It is the "Built-In" categories that I'm confused about. I've tried the 8-bit YCbCR format and it produces excellent video but HUGE files (about 80 times the size of h.264 HQ and a little over twice the size of ProRes 422 HQ 8-bit, and 3x the size of ProRes 422 8-bit files. A DVCPRO50 file is a bit less than 1/2 the size of YCbCR.

I'm assuming that the 8-bit YCbCR is some type of uncompressed codec but can anyone provide a little more detail on the "Built-In" formats above?
Also, any other user input on settings for VHS tapes, Digital8, Analog8 or MiniDV tapes.

Just an additional note: my capture card is not compatible with VirtualDub or OBS so I'm trying to work with the AJA options available to me.

Thanks

[dellsam34]

Apple ProRes 4:2:2 (8-bit) is the closest to lossless AVI 4:2:2, You don't want to capture and encode on the fly, Capture lossless first and encode later, OBS is never the right tool for analog tapes even if it works.

D8 and MiniDV are digital formats, use Sclive to transfer them and a firewire connection.

[acusman]

Just a few tests I am running to check output. Four capture versions.
Using S-Video cable, Panasonic AG-1970 with AVT-1710 TBC running through AJA LHe Plus capture card and breakout box. Capture using AJA Control Room software.

[jagabo]

It is the "Built-In" categories that I'm confused about. I've tried the 8-bit YCbCR format and it produces excellent video but HUGE files (about 80 times the size of h.264 HQ and a little over twice the size of ProRes 422 HQ 8-bit, and 3x the size of ProRes 422 8-bit files. A DVCPRO50 file is a bit less than 1/2 the size of YCbCR.

10-bit YCbCR and 8 bit are uncompressed. You want that or a losslessly compressed version of that. Then you filter and encode to produce your final file.