Not sure what method or firmware you used for jailbreaking (there have been several, some are no longer available), but usually .iso playback is a given, barfle, using the network function on the Oppo.
The only problem I ran into was that the Oppo players are back in SMB v1 era, as far as Windoze is concerned. It's no problem for some, but it was a pita for me trying to get the Oppo to consistently see my shared folders.
What I use is a utility (paid) to use the NSF file system to expose folders to the client (Oppo) on my LAN. Windows has some built in support for NFS, but the utility I bought uses a Daemon server to map the folders to the client and make them available.
Not an expert on this at all as this is getting more into the Unix file system stuff but anyway if your Oppo can see your shared folders then no problemo. If not then this util is cheap enough to make it worthwhile. It was recommended to me by the people I bought the jailbreak firmware from, if I had a problem with folder sharing to the Oppo with Windows.
....and the good news is, barfle, no mouse or keyboard needed in the listening room! lol.