In the process of trying to bring some order & neatness to my data storage I have gone through my handful of USB sticks lately. Most have been OK, but much to my (unhappy) surprise, several Transcend brand 16GB sticks have suddenly failed rather spectacularly. They either fail to read altogether...whether able to display their directories or not - or they do this strange mount, then dismount thing...appearing in, then disappearing from the drive tree sort of randomly. I even tried them under different OSes and they did the same misbehaviours. In the past I have also seen a Crucial branded stick fail quite dramatically - suddenly refusing to even mount anymore (and of course their warranty is about as worthless as used toilet paper). Fortunately for me, when the Crucial branded stick failed it had just been in use for portability & pretty much all its contents also existed on a (far more dependable...) HDD storage. Some of the data on theTranscend branded sticks also has backups, but much to my dismay some of it was too recent to have been backed up just yet and may remain a mystery forever thereby. Of course I have been aware that flash storage is known to suddenly fail with zero warning like these have done - but for me, just the very sudden onset of it in several sticks at once concerns me given that they have not been mistreated in any manner. I am also aware that such failures are just as likely no matter which corporate name is printed upon the things simply because they were most likely made at outsourced non-domestic 'factories' with wildly varying (if any..) QC. All these failures had in common is how they happened so suddenly & with no warning signs whatsoever. So I pose this query: Has anyone run across some good & useful method, s/w or service which is actually able to bring back at least of some of the lost data stored on USB sticks from such a sudden departure ?? Thanks for any helpful replies !!