in my application,user can download and play videos from different video sites like bofunk.com,dailymotion.com,youtube.com,metacafe.com,stupid videos.com etc.what is the idea behind downloading videos from different sites.i implemented a method and is working for some sites.That is by generating a downloadable url from the html string.But this same method is not working for other sites.Can anyone guide me o this?thanks in advance.This is what i have tried and is working for bofunk.com 

```
`-(BOOL)searchForVideoInBOFUNKHTML:(NSString*)htmlString;
{
    NSString *strHTML=[NSString stringWithFormat:@"%@",htmlString];       
    NSString *newString; 

    if ([htmlString rangeOfString:@"id=\"vidplaya\""].location == NSNotFound) 
    {
        return  false;
    }   
    else
    {
        htmlString = [strHTML substringFromIndex:[htmlString rangeOfString:@"id=\"vidplaya\""].location];

        htmlString=  [htmlString stringByReplacingOccurrencesOfString:[htmlString substringFromIndex:100]
                                                        withString:@""];

            newString =[htmlString stringByReplacingOccurrencesOfString:[htmlString substringFromIndex:[htmlString rangeOfString:@"quality"].location] withString:@""];
        NSLog(@"%@",newString);

            newString = [[[newString substringFromIndex:[newString rangeOfString:@"/"].location] substringFromIndex:3] stringByReplacingOccurrencesOfString:@"\"" withString:@""];
         NSLog(@"%@",newString);

            newString = [newString stringByReplacingOccurrencesOfString:@" " withString:@""];
         NSLog(@"%@",newString);

            embededURL = [[NSString alloc] initWithFormat:@"http://media.bofunk.com/media/flvs/%@.flv",newString]; 

        NSLog(@"%@",embededURL);
            return true;

    }
    return  false;

}

```

`But is not working for sites like dailymotion.com.Is it an issue related to any kind of encryption on these sites?