DMS 1.11 is the last legal version, all releases after that were just unlicensed hacks from scene groups (that's why they're not on Aminet). Many DMS versions throw Enforcer hits and, as you noticed, sometimes a DMS archive can only be extracted with the exact same DMS version that was used to create it. DMS' error handling is generally a nightmare, anyway.
Then there are also DMSPro versions, I have something like 2.01 or so. But yeah, they give easily Enforcer hits, which are seen for example in MorphOS's debug log too. It's not a good sign ever...
Stay clear of DMS, ADF is the much better and safer alternative. And you can mount ADF images without having to write them to a disk.
What I don't like with ADFs is that they don't contain any checksum verification. DMS is nicer in that regard, because you just can run it in test mode to check the integrity. ADF:s should always be compressed somehow to get that... and that's not the case usually. And then you lose the direct mounting possibility in many cases.
Another note, that some people may not know, but you can use DMS images with UAE too. Just like the ADF images.
