I’ve seen it too, but only with certain archive clients; but cannot explain the behavior myself. I have no desire to learn the details of the differences between compression utilities. I’ve downloaded and extracted both files on both Windows XP and CentOS boxes with absolutely no trouble, and they were created on a CentOS box, directly exported from SVN, so I’m at a loss.
And honestly, I have no desire to waste a day on this as I do every time a new release comes out. You can get the release from SVN directly and compress it yourself if you need to, or we could start charging for the download service so I can afford to worry about it.
FWIW, the archives were created with the commands:
tar -czvf modx-0.9.6.1.tar.gz modx-0.9.6.1/
zip -r modx-0.9.6.1.zip modx-0.9.6.1/
Using GNU tar version 1.14 and Zip 2.3 from Info-ZIP.
If you have any ideas on what the issue might be, I’ll be glad to do something differently.