I've bought a SSD A-Data 64Gig disk few months ago.

Few days ago after I powered on my laptop from soft hibernate everything just "vanished" from my disk, I've tried testdisk ddrescue and few other programs to retrieve some information, but with no luck, no one program seems to find any even partial file.

So I've installed ubuntu once again, and now I have strange problem, if I do not fire "sync" command before laptop power-off, every changes from disk just disappears! :/

For example I've downloaded 700 mb file, turned off computer, and after power on the wile was gone :/ I have to issue "sync" every time I'm powering off my laptop, and this do not helps in 100% of cases.

Any ideas? Should I return this disk?