Words of wisdom: Never 'beta' when it comes to backup and security software.
Two tools that you can
depend on to create reliable disk images are Conezilla
and Acronis TrueImage
is much more powerful, sports an uglier interface, uses a lot of non-Windows terminology, and must be run from the live CD if you're a Windows user. It is free under GPL. It gets the job done - and the some. http://www.clonezilla.orgTrueImage
is also quite powerful, has a very pretty graphic interface, uses terminology most users are familiar with, and can be run either from within Windows, or from the live CD. It also gets the job done.
For most people, TrueImage is probably the better choice. The only real knock I have with TrueImage is that there seems to be more and more "feature bloat" (and price hikes) with each new release.
I vastly prefer the simplicity of Version 8 or 9 to the current Version 11. I still use version 8 even though I have the newest versions. Opinions aside, TrueImage is still an excellent program, although the average $39 US street price makes it somewhat expensive for such a specialized app.
Especially when you hope you're never going to actually need to use it.