4-1/60 is v26. You should update to any v28/v29/v30 (they're basically the same for MKIV) to get perspective mode, as well as other minor bug fixes.

The mdf and mds are CD images. You should not burn the files into a CD, but use an application to read those images and burn what's inside.

In other words, the CD you burn must have a lot of folders and files inside after being burnt.

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