Romcenter

The xml format changed in mame 0.162.
The tag <game> has changed in mamexml list.
You can extract the dat with the command mame -listxml, then replace new tag by <game> tag (don't forget </game>) and then import dat in romcenter 3.7
Romcenter 4 can read both format.

Thanks for the info. I'm pinning this post, since this can be useful in this transitional period where RC4 is not ready yet and RC 3.71 does not directly support the new mame XML format.

It seems RomCenter 3.7.1 is not compatible with the updated XML structure of the newest MAME releases. This is a possible work-around:
1. Download and install Romulus from [url]http://romulus.net63.net/[/url].
2. Start Romulus and select Add DAT from MAME based EXE.
3. Go to the scanner tab.
4. Select the Fixdat options - sixth icon in the row at the top left.
5. Import the resulting file into Romcenter.

It seems to have been worked. I tested with MAME 0.161, the last version before the merge with MESS.