what mod? did you delete battlefield 2 folder from program files entirely after installing. Also you should delete the battlefield from my documents.

I deleted ALL of the mods in the battlefield 2 folder and all the zip files with it but i didn't check my documents but now that you asked me to i did but nothing in my Hard Disk Drive C:/ or any temporary folders or anything other folder or file at all. I really don't think that it's my operating system because i had no trouble installing it two other times until now the installation still stops at:documents and settings/mods/levels/dragon_valley and yes after every attempt doing this i delete all the folders that can make it before the first 30% of the installation

Make sure you battlefield 2 discs are clean. It sounds like it can't read that file. Also the path you listed documents and settings/mods/levels/dragon valley is not right. BF2 installs to c:\program files\ea games\battlefield 2. And that particular file needs to go to c:\program files\ea games\battlefield 2\mods\bf2\levels

Try copying the the battlefield cd files to a folder on your pc and installing it from there Eg make a folder called c:\BF2 - copy all the files from the cd and try to install it from there. Not it sure if it will work because of the copy protection on the cd.
Otherwise borrow the discs from your friend and use them to install. You can change the cd key later if won't accept yours.

Also to get back to your original problem with the mod. You installed it wrong. When you extract the mod it needs to go c:\program files\ea games\battlefield 2\mods\modsownfolder\levels

The reason your bf2 wouldn't work after you installed the mod last time is that you extracted the mods levels into the mods\bf2\levels folder which would have overwritten all the BF2 maps. It's always a good idea to make a backup of battlefield install before installing any mods. Just copy the whole battlefield 2 in the ea games folder and name it bf2backup. That way if anything goes wrong you can just delete the entire Battlefield 2 folder and rename your backup battlefield2 and everything works again.

Post back if still have problems.

It still won't work this is really ticking me off. My Freind has been gone for over a week on break so i haven't got the chance to ask for his disc but i'm still having troble any one!

I checked EA's website you can copy the files to ur hdd and install from there - here's the link. Just follow their instructions. You may also to try the other possible they list such as killing off any unnecessary processes, etc.

ANSWER

There's still a number of things you can try - however if you can't copy the files from the disks onto the hdd then your disks are faulty and you should return them to where you bought them for a replacement. If you manage to copy the disks onto your hdd with no problems and it still won't load then you will have to clean up the registry to get rid of any trace of the old battlefield install. It could also be a DirectX problem but i don't think thats likely.

Here's the instructions to do the registry fix and get rid of all traces of battlefield 2. I'd do this before the above then try to install again.

ANSWER

I tried to copy the cd's to the folder as instructed but it wouldn't copy disc 1 file data2 and it said at the bottom: If there is an error copying files then you disc might be defective or broken if so then take your CD's with manual and and return it for a new cd. so i guess i have to wait for my freind to come back so i can get his discs

Make sure that one version is not cd and one dvd.

You may still want to get new cd's. Just so you don't have this problem again when you go to install BF2. If the store won't replace them - you can get replacement CD's from EA Games for around $13.00US.

I think it has to be within 90 days of buying them though. Maybe email their technical support section and find out what you need to do.

Ok so i got the discs from my friend and it dose the same thing and it says Error Try Installing From Start, so could it be an O/S problem?

I'm really getting Tried of this, Everything i do doesn't work and I'm really getting angry should i just wait for battlefield 3 because EA support didn't help i can't back up the disc because theres a copying error and I've tried 2 sets of discs Mine and my friends and it simply doesn't work and I'm at the end of my rope what do i do!

Is there any possibilty that you have you have u and ur friends disc 1's mixed up. Don't think its likely since its stuffing up on disc 1 but could be.

Anyway try the following - in Device Manager under IDE ATA /ATAPI controllers - double click your CD/DVD drive. On the Advanced Settings TAB - if the current transfer mode is POI change it to "DMA if available". If its DMA mode try changing it POI only.

Let me know if this doesn't work.