Thank you. I already have Bitcasa's Infinite drive.
It works, but the Windows desktop application is buggy and slow.
Uploading even a 600 MB file from the desktop application takes forever.
The web interface is faster, but if left to its own the browser (FF19) re-uploads the same file again and again in a loop.
I can live with it, but Bitcasa is really not ready for production use.
You should definitely give Crashplan a try then. Almost every professional reviewer of backup services out there praises it to be the best out there. Also, they offer a 30-day free trial.
However, someone in this thread mentioned that he only gets around 30Mbit/s while uploading files form his Europe based server. Can't confirm if uploading from outside the USA is always limited to that speed, though.
Have not tried out 1fichier, but it has been reported that files sometimes disappear.
At least three people in this thread also reported that files disappear randomly from FF's servers. Every file host has that problem. Big players like RS, FF, HF etc have thousands of servers with several petabytes of files stored on them. There's absolutely no way some files wouldn't disappear. Not even with the best RAID system possible.
If you really want 100% security, you'll have to buy a dedicated server. A dedicated server is much more expensive than a file host though (OVH for example offers a backup dedicated server with 10TB for 180€/month) and you have to know how to set it up. Other than it's perfect for backups.
Can you recommend any good auto rename software which renames files to random but unique names?
Hm, I doubt any rename software offers that option. However, every decent renamer offers "consecutive numbering":
new file name: "file"
consecutive numbering enabled, initial value: 00001
holidaypics.rar --> file00001.rar
documents.rar --> file00002.rar
music.rar --> file00003.rar
videos.rar --> file00004.rar
games.rar --> file00005.rar
etc.
In order to know what number is what file, just use Abby Finereader's OCR to copy the names of all files of a folder (50 file names per column should be possible) and copy the names into an excel file. By default, excel has a bar with numbers going from 1 to infinite on the left side.