Components
Intel® Core™ 2 Quad-Core Q8300 Processor (2.5GHz, 4MB cache, 1333MHz FSB)
Genuine Windows Vista® Home Premium SP1 32 bit – English
Microsoft® Works 9 – English
1Yr Premium Warranty Support
20in S2009W WIDESCREEN UK Black (1600 x 900)
4096MB 1067 MHz Dual Channel DDR3 SDRAM [4×1024]
Hard Drive 500GB Serial ATA non Raid (7200 Rpm)
512MB ATI™Radeon™ HD 4670 graphics card
16X DVD+/-RW (Read/Write DVD, CD)
Dell™ USB Entry Keyboard – UK/Irish (QWERTY)
Dell Optical Scroll USB (2 buttons scroll) DUAL TONE Mouse
Accessories
No Security/Anti-Virus Protection – English
Integrated HDA 7.1 Dolby Digital Audio
No Speakers (Speakers are required to hear audio from your system)
19-in-1 Media Card Reader
Services & Software
No Accidental Damage Support
DataSafe Online Backup 2GB 1 year
Also Includes
English Documentation with UK/Irish Power Cord
D08X301
XPS Desktop 430 Order – Ireland
1 Year Premium Warranty Support
Datasafe Local 2.0 Basic
Resource DVD – (Diagnostics & Drivers)
===============================
Components
Intel® Core™ i7 Processor 920 (2.66GHz, 8MB cache, 4.8GT/sec)
Genuine Windows Vista® Home Premium SP1 (64 BIT) – English
Microsoft® Works 9 – English
1Yr Premium Warranty Support
20in S2009W WIDESCREEN UK Black (1600 x 900)
4096MB (4×1024) 1067MHz DDR3 Dual Channel
500GB Serial ATA (7200RPM) Hard Drive
1GB NVIDIA® GeForce™ GT220 graphics card
16X DVD+/- RW Optical Drive (DVD & CD read and write)
Dell™ USB Entry Keyboard – UK/Irish (QWERTY)
Dell Optical Scroll USB (2 buttons scroll) DUAL TONE Mouse
Accessories
No Security/Anti-Virus Protection – English
Integrated HDA 7.1 Dolby Digital Audio
No Speakers (Speakers are required to hear audio from your system)
19-in-1 Media Card Reader
Services & Software
No Accidental Damage Support
Also Includes
English Documentation with UK/IRL Power Cord
D08SX03
Studio XPS Desktop Order – Ireland
1 Year Premium Warranty Support
Datasafe Local 2.0 Basic
Resource DVD – (Diagnostics & Drivers)

As of two months ago nearly all the rar files (r01,r02,r03,etc) I download that are between 40mb-100mb never extract properly.
These are the error messages I get

With 7z – "CRC failed in ‘name of file’. File is broken"
With Winrar – "Packed data CRC failed in ‘name of file’. The volume is corrupt" with WinRAR (tried several versions)

Now I know you can set winrar to ignore the message and continue. But I need to know, is this due to some sort of hardware failure?
I ran memtest 86+ for 14 hours with no errors. Possibly my harddrive is going? (despite not finding any errors with hd diagnostic software)

So then I decided to move the exact same files over to my old computer. They extract perfectly. So its obviously not caused by the download source.

The strange thing is I can extract 1gig rar files perfectly. But if the 1 gig extracts into smaller rar files I cannot extract those.

I already replaced the RAM with new memory. To no avail.

If this helps my specs are :
Windows 7 operating system (tried it on my dual-boot Windows XP SP3 as well)
ASUS Striker Extreme motherboard
8 Gigs Crucial Ballistix DDR2
500gb Seagate Barracuda 7200.10 drive
1tb Western Digital external drive
ATI Radeon 2900xt graphics card

Oh, and i’ve formatted my harddrive twice since these errors. I’m hoping its something as cheap as replacing the CMOS battery. 😛
—–
Solidus – I know the files aren’t corrupt due to the download itself because the exact same files extract perfect when I move them to a different computer.
Oh and i’ve tried re-downloading. No luck.

Are there any softwares that can scan my computer to tell me what kind of video and sound card I have? I need the drivers, but I don’t know what kind of sound and graphics card I have.