Mazinkaizer

Stop doing drugs Andrew..............

Thanks for the info Horseshack - much appreciated! I'd go for RAW, and backup to a portable hard disk frequently. The bit about leaving the NAND cells themselves in an intermediate state is interesting - so potentially you wouldn't be able to use the same card once you power up the camera again - but you'd need to copy the files and scan / reformat the card before using it again.... Guess Andrew will soon try this method out on a real shoot - and we'll soon learn if it indeed turns the R5 into an 8k RAW monster..... thanks again for the info and reply!

Missed that bit! So at worst you'd lose about the last 20 seconds when pulling power when recording RAW.... can the card be re-used again soon after powering up the camera up - or would it be flagged as needing to be scanned / repaired? Mind you, unless you have thousands to splash on expensive cards - in practice you'd need to stop and backup to a cheaper medium anyway (or have an assistant do it for you).

How about trying to make this thing useful now? And get it to actually make videos? Anyone lucky enough to own an R5 can erase thoroughly and format a card - then post an image of the empty card online. Then, record a video with this newfound method, and after removing the battery - image the card again and also post the image file online. Finally, after duly erasing and re-formatting the card - record a video in the same format but stop it and shut down the camera properly. Maybe repeating the process (always erasing and formatting the card in between) would also help. Then Andrew's devoted army of technical genuises can examine the files and get cracking at finding a way how to rescue and repair the video files when the camera is abruptly switched off.... Basically we need image files (using tools such as CloneZilla or the ageing Ghost) of an empty card, a few with video stopped abruptly with the battery pull trick and others with a proper, completed video file - all in the same pre-agreed 8K format. Once we learn how to find and repair a video file - we can write a small utility which can run on any smartphone or tablet, which will rescue the file automatically as soon as a card is inserted in a connected reader - still very cumbersome to use - but for some it might be worthwhile and we'd show dear Canon the finger by turning the R5 they crippled into a (semi) useful 8k video tool! A flight of fantasy or is it doable?