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How to clean and repair CDs, DVDs and game discs; mobile acronyms explained; 2 12megapixel cameras to launch; Sony’s smallest HD camcorder; Xbox’s 2009 games lineup; Camera iPod?; Hacking for dummies; Robot mimics human emotions; Can you put a camera through a blender?; Jet pack vs car; How do fuel cells work?; Robots inspired by animals; 236kph on a rocket-powered mountain bike; Macro photography tutorial; Canon EOS 1000D; JBL Project Array floorstanding speakers; Magico V3 floorstanding speakers; Cowon A3 Portable Media Player; Epson Stylus Photo R1900 A3 inkjet printer

What are filters?; how loud can your stereo be before noise control comes around?; Testing the Nikon D90; Facebook manners and you; Big Dog military robot; Ricoh Caplio R6; X-Men Origins: Wolverine game trailer; Kiva robots picking stock in a warehouse – the demise of humans; * JVC DLA-HD100 D-ILA home theatre projector; Klipsch/Yamaha Harmony F2 home theatre system; Pioneer XV-CX500 home theatre system; Arcam Solo Mini music system; Motorola Moto Q Smartphone; Casio Exilim EX-F1 camera; Pentax K20D camera

History of the subwoofer; reviews: Canon FS11 AVCHD Camcorder, JVC Everio GZ-MG330 HDD Camcorder, Klipsch RB-61 bookshelf speakers, Theophany Epiphany M3e, C3e and Sub 1 AV speaker system, Velodyne MicroVee Subwoofer; videos: Cleaning the sensor on your DSLR camera, Honda develops brain-machine interface, Open Ampera electric car concept, Tone test: Sony Vaio pocket PC, Behind the scenes of the Canon Rebel XSi commercial, Photoshop tutorial: smooth skin, Apple ads 1997-2001

What is a netbook, the CD turns 30, win a subscription in our forum, new videos (including the first ever cellphone ad), and blog updates from our writers

Guide to purchasing speakers, in-ear earphones, Samsung HT-BD2 home theatre system, Navman S200 GPS, Netbooks explored, travel tech – taking technology on the road, cool computer add-ons and peripherals