DVDx 3.2 is the best one to have installed. I never could find out what was in it that made it better than the DVDx 3.4. Then IOS202, which still isn't clear if that was better than either of the DVDx versions. Most members don't even play from disc, I don't either, but that don't mean I am going to remove my DVDx. I may need it some day. Who knows what the future holds.
What's the benifit of having anything installed. I guess that it is prefrence. Them guys over at HackMii and WiiBrew are working against you and I. Before long, the new hacks are going to make it harder to play backups and will be aimed at just homebrew. I'm removing IOS58 from my Wii, and keeping my homebrew channel 1.0.1.
It appears that the Wii Homebrew Scene is planning to go on the offensive against pirates with Project TrustDev. I have received startling details from insiders in Team Twiizers, maintainers of the Wiibrew wiki, and several in-the-know people on EFNET.
In short, Project TrustDev will eventually make it so that only homebrew applications with a special encrypted header will be usable from other homebrew applications, including the upcoming Homebrew Channel 2.0. This will lock out frowned upon homebrew such as the various disc launchers circulating about. It will also refuse to work properly on Wiis that contain pirated WiiWare, Virtual Console games, and "Custom" IOSes that have been patched for piracy purposes.
Getting your software approved by Project TrustDev will apparently be free of charge. The requirement is that you provide your source code, of course, and then a panel reviews the code to ensure it meets various decorum requirements. It is then assigned a special encrypted header that will allow it to be executed from TrustDev homebrew.
Already there are over a dozen homebrew developers that have signed on to Project TrustDev. I have spoken to three others so far who are undecided but leaning towards signing on.
DVDx 3.2 needs the IOS202 installed first, then when installing DXDx, IOS202 is selected in advanced mode I think. So yes, DVDx 3.2 needs IOS202. Nintendo did away with that in 3.4, no usb 2.0 support with DVDx 3.4, that's when it died a horrible death. But now, IOS202 is used without DVDx, but does IOS202 offer more than DVDx 3.2/IOS202 combo?