Just bought a cheap action cam (3 I think) just to see how I get on with it. Haven't used it yet, If I start to use it a lot I might consider a better one. I do like the idea of the remote controller. Not bothered about sound quality cos it seems all you get on a bike is wind roar anyway.
ah...think someone else on here has one of them......MAPLINS ?
Yep, Bill (slimwilly) got one (Actioncam 3), I thought the quality of the vids he posted was good enough to be starting with, £60 Maplins job, + microSD card (16Gb). I also thought I might not end up using it much, hence going for a cheaper option. I may have been right, cos it's still in the box!
It is very good value for money but it has a LOT of problems. The mic is worse than rubbish, the frame rate seems slow. IIRC it splits the files in to 2gb pieces and it misses out a few seconds at the beginning and end of each file. The buttons are a faff to use and difficult to remember which sequence of flashing lights means what. The editing is difficult as IIRC the codecs, although okay, are not the normal mobile ones.
I think Alex Fitu got it right, whack a 32GB card in each, set it to loop, run from the ignition, overwrite when full and mount one at the front and one at the back permanently. Good for accident evidence.
I'd get something decent for a helmet camera though.
All of this is just my own unsubstantiated opinion.