I am running Ubuntu 6.06, I have an encrypted arhive that contains picutures I want to unzip. When I try extracting the files I get an error message that says

skipping: CIMG0065.AVI need PK compat. v5.1 (can do v2.1)
skipping: CIMG0471.AVI need PK compat. v5.1 (can do v2.1)
skipping: CIMG1097.AVI need PK compat. v5.1 (can do v2.1)
skipping: CIMG1386.JPG need PK compat. v5.1 (can do v2.1)
skipping: CIMG1389.JPG need PK compat. v5.1 (can do v2.1)
skipping: CIMG1390.JPG need PK compat. v5.1 (can do v2.1)
skipping: CIMG1392.JPG need PK compat. v5.1 (can do v2.1)
skipping: CIMG1397.JPG need PK compat. v5.1 (can do v2.1)
skipping: CIMG1399.JPG need PK compat. v5.1 (can do v2.1)
skipping: CIMG1400.JPG need PK compat. v5.1 (can do v2.1)
skipping: CIMG1401.JPG need PK compat. v5.1 (can do v2.1)
skipping: CIMG1403.JPG need PK compat. v5.1 (can do v2.1)
skipping: CIMG1406.AVI need PK compat. v5.1 (can do v2.1)
skipping: CIMG1485.JPG need PK compat. v5.1 (can do v2.1)
skipping: CIMG1486.JPG need PK compat. v5.1 (can do v2.1)
skipping: CIMG1487.JPG need PK compat. v5.1 (can do v2.1)
skipping: CIMG1488.JPG need PK compat. v5.1 (can do v2.1)
skipping: CIMG1489.JPG need PK compat. v5.1 (can do v2.1)
skipping: CIMG1490.JPG need PK compat. v5.1 (can do v2.1)
skipping: CIMG1491.JPG need PK compat. v5.1 (can do v2.1)
skipping: CIMG1492.JPG need PK compat. v5.1 (can do v2.1)


I searched around on Google but my only luck was a German website that I could not connect to anyways. I am new to Linux so the more dumbed down the answer is the better. Thanx for taking the time to try to help me out.

Take a look at this page. It is a long page so I suggest you search for the phrase need PK compat. v5.1 (can do v2.1).

The operative statement seems to be "Newer versions of pkzip support DES/3DES/RC2/RC4/AES encryption, none of which is handled by unzip."

I am not sure this will help you, but at least it might let you know what is going on.