Sony ILCE-7RM3 Instruction Manual page 52

Note
• Creating an AVCHD recording disc from movies that were recorded with
[60i 24M (FX)]/[50i 24M (FX)] as the [
because the image quality of movies is converted. If you want to store movies
without converting them, use a Blu-ray Disc.
• [120p]/[100p] cannot be selected for the following settings.
– [Intelligent Auto]
GB
52
Record Setting] takes a long time