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[cerealkillajme]

Why not just put the HDD in the 360 and delete the beta from the dash?

You might only be able to delete the beta by starting the beta and there being an option in the menu?

I doubt anybody will know which folders it is to delete, but I'd say it's probably all stored in one folder, so if you find one that is several gigs that's probably it.

[tyraen]

I may have just found it though after browsing through a bunch of directories; I'm pretty sure it's it actually, since it has a couple files named PlayOnline (I think it had an app called PlayOnline Viewer or something).  It's under: Partition3/Content/00000000000000000/53510000

Now, I don't really have free space to back my drive up.  Are there any dangers in just deleting this folder, other than the inherent risk in using any homebrew tool?  I mean, does the 360 itself notice if you delete content using Xplorer?

[tyraen]

Yup, that did it.  Just deleted that folder.