Have you downloaded any codecs ?
This can always affect performance of your playback content.
DId you make any changes inside Catalyst Control Center (AMD/ATI CCC)
Computer type PC/Desktop System Manufacturer/Model Number Gateway / Slight Modifications OS Windows 8 64 bit PRO CPU AMD Phenom X4 9100e Motherboard Gateway RS780 Memory 2GB X2 DDR2 Graphics Card Sapphire HD 6850 Sound Card Integrated Monitor(s) Displays Gateway 19" + Dell 19" Screen Resolution 1440X900 sometimes 2880 by 900
Keyboard Saitek Eclipse II Mouse Gigabyte GM-M6800 PSU Antec BP 550watts Case Antec 300 Cooling Stock Cooling Hard Drives WD 80GB
WD 640GB
WD 1,000GB Internet Speed D: 30Mbps U:4Mbps Antivirus Avast version 8 Browser Internet Explorer ver 10 64 bit Other Info This is my work computer.
I have another laptop running Windows 7 64 bit.
Another PC running Windows 8 64 bit pro.
Total of 3
System Manufacturer/Model Number Mine OS Windows 7 Home Premium x64 CPU AMD FX-8150 Motherboard ASUS Sabertooth 990FX Memory Corsair Vengeance Dual-Channel 1866MHz 8GB (2x4GB) Graphics Card x2 Galaxy GeForce GTX 560 2GB in SLI Sound Card (Onboard) Realtek ALC892 Monitor(s) Displays Dynex 42 inch HDTV Screen Resolution 1920x1080
Keyboard Logitech Wireless Solar K750 Mouse Logitech Wireless M305 PSU Kingwin KX-1000 Case Corsair Carbide 500R Cooling Corsair H100 Hard Drives Seagate Barracuda 2TB (SATA);
My Book 300GB (USB);
My Book 3TB (USB) Internet Speed DSL (unsure of details) Other Info LiteOn iHBS212 Blu-Ray Writer (SATA)
Though admittedly you may want to have a look at chris1neji's sugestion first.
Though I believe that is somewhat negated by the issue appearing in vlc , which doesn't use the system codecs.
System Manufacturer/Model Number Insane hobo technologies. ;-) OS Windows 7 x64 CPU Intel i7 2600k Motherboard Asrock z68 extreme 4 gen 3 Memory G.skill Ripjaw 16gigs @ 1866 Graphics Card Nvidia gtx580 (evga) Sound Card Integrated HD audio + hdmi Monitor(s) Displays 24" ASUS widescreen + 42" insignia Screen Resolution 1080p (1920x1080)
Keyboard Microsoft wireless 3000 (v2) Mouse MS - wireless 5000 (bluetrack) PSU 1 kilowatt SLI/Crossfire rated Silverstone modular Case NZXT Phantom + additional 220 fan Cooling Zalmann Hard Drives 128 Samsung 830
256 Samsung 840
3 x 1tb storage drive (various)
1 western digital 1tb (eSATA)
1 Seagate 1tb (eSATA) Internet Speed depends on if you ask me or my provider. Other Info The above information is provided as is, and the author assumes no responsibility for issues it may cause with your sanity or fanboyism.