has anyone got any recommendations on micro SD cards as im in the market for a couple to go in my 03 unit and runcam thumb pro, maybe around the 256Gb ???
And a reputable supplier as I know there is a lot of fake crap out there 
SanDisk Extreme Pro, all I ever use and get mine form Amazon, never had a problem, I have this is my Air 3, and it was in my Mavic 3 before that, I also have a 512GB, and a few 128GB’s and not one has let me down
https://www.amazon.co.uk/SanDisk-Extreme-microSDXC-RescuePRO-Performance/dp/B09X7DMBVF/ref=sr_1_3?crid=1F3KQ12Y88MXG&keywords=sandisk+extreme+pro+256gb&qid=1707578055&sprefix=256gb+extre%2Caps%2C72&sr=8-3
Cool thanks for that 
just out of interest how many Gb is the average 5 min 4k file ???
1.5 gb ish
There is a school of thought that suggests using several smaller capacity cards over the course of a day’s flying rather than one large one.
Change the card as well as the battery every time you land. That way if things do go very wrong - corrupted card or lost aircraft - you have only lost one flight’s worth of video and stills.
good stout I like it 
upstairs for thinking and down for dancing 
I like a good Guiness myself!