Re: Streets of Fire (German, region free)?
Yes, manicsounds is correct that it appears that the extras are in SD, not HD, therefore they are in the PAL format (in this case). If your BD player doesn't play PAL then it'll most likely keep returning you to the menu. Sad but true!
I also wanted to point out that this BD can be had MUCH cheaper than the link you provided in the 1st post. Looks like if you order it from Amazon dot de even with shipping to the US it comes out less than $11.00 USD. Maybe even if you can't play the extras then paying a lot less for it might make it less of a bite in the ass!