If you keep DVDR copies of them you don't need to worry about losing them, right ? I've had crashes on my PS2 HDDs and even lost my precious FFXI once ... But it was easy to recover most stuff from the HDD with the HDLdump salvage kit. It could even recover non HDL stuff (on this case all of my FFXI partitions and some free games I DLed from PSBBN)
A link to HDLdump page is at PS2-Scene top page.
I try to avoid winhiip myself as I have the oficial HD and I heard enough horror stories of ppl being not careful while using winhip (Which seems to be "way too powerful" kind of tool, if you get what I mean.)
SCPH-10000_GH-001 SCPH-15000_GH-003 SCPH-18000_GH-008 SCPH-30001_GH-005 SCPH-30000_GH-016(V4) SCPH-30001_GH-010(V4)
2xSCPH-10190, 2xSCPH-10350, 2xSCPH-10280
"**** j0 hackers!"
-Sjeep (As seen on TOXIC OS ELF...)