@bram
MP4 is the preferred codec since it uses a newer Windows system, but you are correct Palindrome isn't a useable playback option with this codec.
Here are some codec specs I recorded sometime ago:
Known Bad Codecs:
Decklink MJPEG CompressorMicrosoft RLEMicrosoft YUVToshiba YUV
Known Working Codecs:
DV video encoder (DS)Hap (vfw)HapA (vfw)HapQ (vfw)Intel IYUV (vfw)MJPEG Compressor (DS)MSScreen 9 Encoder (DMO)MS Video 1 (vfw)WMVideo8 encoder (DMO)WMVideo9 encoder (DMO)Black Magic HD 8 bit 4:2:2Black Magic 8 bit MJPEGBlack Magic 10 bit 4:4:4Black Magic 10 bit 4:2:2
Performance Grid:
(cpu usage comparison during record of 30 sec clip at 1280x720, 30fps, 75% quality)
Average cpu usage at runtime of test patch is 14-18% and gpu usage also 10-14%
Note: all recorded values are +- 2-3% and at start of record generally have a spike in usage not included in these usage stats.
CODEC
CPU usage
GPU usage
DV video encoder (DS)
34%
13%
Hap (vfw)
52%
13%
HapA (vfw)
53%
13%
HapQ (vfw)
53%
13%
Intel IYUV (vfw) *
28%
13%
MJPEG Compressor (DS)
46%
13%
MSScreen 9 Encoder (DMO)
46%
13%
MS Video 1 (vfw)
31%
13%
WMVideo8 encoder (DMO)
47%
13%
WMVideo9 encoder (DMO)
47%
13%
Black Magic HD 8 bit 4:2:2
27%
13%
Black Magic 8 bit MJPEG
30%
13%
Black Magic 10 bit 4:4:4
30%
13%
Black Magic 10 bit 4:2:2
28%
13%
* This video format does not playback in the correct color in Isadora since YUV support is dropped in Isadora 3
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So based on these results, I lean towards using the 8-bit BlackMagic codecs myself. (installed with free blackmagic software)