Hiya Charly,
I'll just do it in English, seeing you're based in Detroid, and this might be easier for you. Sadly, with cheap SOC's like Raspberry Pi becoming available and a lot of off-the-shelve software such as XBMC and community plugins that allow people to build in a certain degree of automation, you're starting to see a rise of people and SME's, sometimes Asia-based, reverse-engineering the circuit boards/reselling these, and installing open-source software on this. Now this would not be a bad thing, but as my fellow Tweakers highlighted in this topic, the Dutch used by these people (or the English) is of such a poor level, and the quotes being made are so unbelievable, frankly: if their "visitor card" on the web is of such quality, the effort they took to integrate all these solutions is BOUND to be crap as well. Just like the warranty, and everything... Which is sadly also something that probably happened to your friend.
Now this could be a long and painful debate, but there is a law in Europe, that entitles you to receive a good quality product for the realistic live expectancy of the device. For electronics this is typically around 2 years. Many stores and factories usually provide one year extensive warranty, but that doesn't mean their responsibilities end there. The burden of proof simply shifts towards the consumer.
In your case, there's an agreement between your friend, and filmspeler.nl -- they could raise a tantrum that you've altered the product; you removed the sticker, after all, but I'd still try my luck.
Now about the price... that's something noone can say a thing about. In the supermarket as well you get many brands of peanut butter coming from the same factory in many different coloured jars. Yes, your friend overpayed, but also: he could have investigated. What he CAN however do is claim that he was promised a product that should deliver on all statements, as in: it works, and it performs function X and Y as promised on the website.
As this topic made clear, everybody can smack OpenElec in a raspberry pi and install something like couchpotatoe, that doesn't mean, however, that it's a full and integrated solution. Frankly: the poor chip is probably overclocked way too much. Either they can replace the product with something that DOES perform the advertised functions, or you can get the sale agreement declared void. Which means a refund. Minus damages probably for removing that sticker...
Anyhoo, all things said and done: a lesson is to be learned. Investigate before you buy. Tweakers.net has a very nice pricewatch, where the community reviews mediaplayers, and here on the forum many people actually build their own (which is rather easy...). I'm sure that if you read up and post smart, that plenty of people here are willing to help. And although this is a Dutch forum, we do speak English. Though we do appreciate the effort you took in trying Dutch.
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haha, daar moet je inderaad voor opletten 
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, why 100€ to much en why put they a sticker on the (MX) box?:strip_icc():strip_exif()/u/454512/crop56da14dba10bd_cropped.jpeg?f=community)
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Dit topic is gesloten.
