Are they practical to upload to youtube etc ?
How big are the file sizes.
I did read somewhere a 1 minute uncompressed file was 32gb
not sure if its compressed or not (i guess it is ) but if so how much compression. ?
Recording time will vary according to the resolution setting used and the card capacity. Here are the average recording storage times for HERO4 cameras with a 64GB SD card.
Note #1: If you are using a 32 GB SD card, these average record times would be half as large.
Note #2: These are not battery life estimates, it these are storage capacity estimates for the SD card.
Normal Recording With Protune
4K-30 2h 13m - 60 Mbps 2h 13m - 60 Mbps
4K-25
2h 13m - 60 Mbps 2h 13m - 60 Mbps
4K-24 2h 13m - 60 Mbps 2h 13m - 60 Mbps
4K-24 Superview 2h 13m - 60 Mbps 2h 13m - 60 Mbps
2.7k-60 2h 13m - 60 Mbps 2h 13m - 60 Mbps
2.7K-50 2h 13m - 60 Mbps 2h 13m - 60 Mbps
2.7K-48 2h 13m - 60 Mbps 2h 13m - 60 Mbps
2.7K-30 2h 56m - 45 Mbps 2h 56m - 45 Mbps
2.7K-25 2h 56m - 45 Mbps 2h 56m - 45 Mbps
2.7K-24 2h 56m - 45 Mbps 2h 56m - 45 Mbps
2.7K-30 Superview 2h 56m - 45 Mbps 2h 13m - 60 Mbps
2.7K-25 Superview 2h 56m - 45 Mbps 2h 13m - 60 Mbps
2.7K 4:3 - 30 2h 56m - 45 Mbps 2h 13m - 60 Mbps
2.7K 4:3 - 25 2h 56m - 45 Mbps 2h 13m - 60 Mbps
1440-80 2h 13m - 60 Mbps 2h 13m - 60 Mbps
1440-60 2h 56m - 45 Mbps 2h 13m - 60 Mbps
1440-50 2h 56m - 45 Mbps 2h 13m - 60 Mbps
1440-48 4h 22m - 30 Mbps 2h 56m - 45 Mbps
1440-30 4h 22m - 30 Mbps 2h 56m - 45 Mbps
1080-120 2h 13m - 60 Mbps 2h 13m - 60 Mbps
1080-90 2h 13m - 60 Mbps 2h 13m - 60 Mbps
1080-60 4h 22m - 30 Mbps 2h 56m - 45 Mbps
1080-50 4h 22m - 30 Mbps 2h 56m - 45 Mbps
1080-48 4h 22m - 30 Mbps 2h 56m - 45 Mbps
1080-30 4h 22m - 30 Mbps 2h 56m - 45 Mbps
1080-25 4h 22m - 30 Mbps 2h 56m - 45 Mbps
1080-24 4h 22m - 30 Mbps 2h 56m - 45 Mbps
1080-80 Superview 2h 13m - 60 Mbps 2h 13m - 60 Mbps
1080-60 Superview 4h 22m - 30 Mbps 2h 56m - 45 Mbps
1080-50 Superview 4h 22m - 30 Mbps 2h 56m - 45 Mbps
1080-48 Superview 4h 22m - 30 Mbps 2h 56m - 45 Mbps
1080-30 Superview 4h 22m - 30 Mbps 2h 56m - 45 Mbps
1080-25 Superview 4h 22m - 30 Mbps 2h 56m - 45 Mbps
1080-24 Superview 4h 22m - 30 Mbps 2h 56m - 45 Mbps
960-120 4h 22m - 30 Mbps 2h 56m - 45 Mbps
960-60 4h 22m - 30 Mbps 2h 56m - 45 Mbps
960-50 4h 22m - 30 Mbps 2h 56m - 45 Mbps
720-240 2h 13m - 60 Mbps 2h 13m - 60 Mbps
720-120 4h 22m - 30 Mbps 2h 56m - 45 Mbps
720-60 4h 22m - 30 Mbps 2h 56m - 45 Mbps
720-50 4h 22m - 30 Mbps 2h 56m - 45 Mbps
720-30 5h 53m - 20 Mbps 2h 56m - 45 Mbps
720-25 5h 53m - 20 Mbps 2h 56m - 45 Mbps
720-120 Superview 4h 22m - 30 Mbps 2h 56m - 45 Mbps
720-60 Superview 4h 22m - 30 Mbps 2h 56m - 45 Mbps
720-50 Superview 4h 22m - 30 Mbps 2h 56m - 45 Mbps
WVGA-240 4h 22m - 30 Mbps 4h 22m - 30 Mbps