Sorry, I made a guess about how much you knew about DV.
- Profile 4: dual layer with a SDR base layer - rare in the wild
- Profile 5: single layer as used by streaming services - incompatible with HDR10/BT2020 so we convert that to HDR10. Without the conversion, you would see purple and green colours.
- Profile 7: dual layer with a HDR10 base layer (optionally with HDR10+ metadata) as found on Blu-rays. The second layer may be ‘FEL’ or ‘MEL’. These are played as HDR10/+ and Vero V ignores the second layer
- Profile 8: single layer which is HDR10 or HLG compatible. Quality equivalent to Profile 7 MEL. Many rips you may find on the web are Profile 8 that have been converted from Blu-ray so they are playable on more devices (ie devices which can’t handle dual layer).
All other profile numbers are deprecated or experimental.