my site is http://www.youtubemusicdownloader.com I want to know if i get many backlinks to http://www.youtubemusicdownloader.com/free-mp4-player.html, will it effect the main index page and can get a good search result ranking?
If you build incomming links to your internal page it will mainly help to get this internal page ranked. But it will also help your domain in total, as Google will see your domain total links number increased