Is there a place that I can order or buy american movies with Khmer subtitles or dubbed in the Khmer language?

Why don't you do some search on the web then email those companies that sell them in the US or try contacting some Khmer orgonisation that also in the US to see if they can help you.
I'm sure you get quicker and better response than posting your help here.

I have tried to Google several differant words and phrases to look for this on the web with no success.

About 7 months ago a Khmer friend of mine did show me a site like this but you had to buy the movie online and download it to your computer, however I can't recall the address and this friend isn't in Ohio anymore for me to ask again.

I have also looked for the same, movies subtitled or dubbed, in Vietnamese also but no luck there either.

The reason I asked here is I figured there may be alot of Khmer people posting and reading here and they may know a little publicized site or store that sells the kind of DVD I am looking for.