camraman

Yes those Halfords screws are fine, I used them

I had this problem, then read somewhere on these pages that I had to use CR-RWs, problem solved.

Found this on the Skoda website if it's any help; Can I use Bio-Diesel in my vehicle? Standard Forecourt Fuel – BS EN 590 Volkswagen Group does approve the use of diesel fuel containing up to 7% Biodiesel in all of their diesel vehicles. The change to legislation on 1st April 2010, insists that fuel suppliers must use at least 3.5% Biofuel in diesel production. In accordance with European legislation (Directive 2003/30/EC) the Biofuel content in forecourt fuel will gradually increase over the next few years, to meet the objective to reduce the lifecycle greenhouse gas emissions produced by road transport. Filling station forecourts supply diesel (to the standard BS EN590), which can now contain up to 7% Biodiesel with at least 93% Fossil fuel. The use of this fuel requires no modifications to the vehicle or changes to the vehicles’ maintenance schedule. Important: BS EN 590 is approved for vehicles fitted with a Diesel Particulate Filter (DPF). B30 Biodiesel Volkswagen Group does not approve the use of B30 Biodiesel in any of its vehicles. B30 Biodiesel is a blend of 70% Fossil fuel and 30% Biofuel, derived from Fatty Acid Methyl Ester (FAME). The use of this fuel in Volkswagen Group vehicles may invalidate the engine and exhaust system warranty. 100% Biodiesel Certain Volkswagen Group vehicle models are approved to run on 100% Rapeseed Methyl Ester (RME) Biodiesel. 100% RME Biodiesel compatible parts fitted during manufacture of the vehicle is denoted by the vehicle PR code 2G0, which is found on the data sticker; however some of the older vehicles may not have this PR code. Always refer to the Owner’s Handbook and factory information regarding the vehicle’s compliance with Biodiesel before using this fuel type. In vehicles that are 100% Biodiesel compatible, Volkswagen Group has only approved the use of Rapeseed Methyl Ester (RME) to standard DIN EN 14214. No other Biodiesel can be used. For further information owners and drivers are requested to contact their local retailer or refer to their owner’s handbook.