Hi.
Henni, this is not true.
I upgraded my Audya with an Ajamsonic ssd. Then messed up the connectors of it. Managed to fix it enough so that I could connect it to a pc. But didnt trust the soldering enough to use it in the audya for live use.
So I bought a new SSd disk and cloned the old one using a free clone software. Everything works great!
The only thing is that you have to format the new disk to fat 32. Ssd disks will only format to ntfs or xfat. So you have to software for that. I found it on google.
I can post what software to use later, if you want to know.

Stian