Best Search Engine Friendly URL

Hi Webmaster Friends

I Want to Know One think about URL what is the best SEF URL in these

www.yourdomain.com/music/index.html
www.yourdomain.com/music/

and in these 

www.yourdomain.com/music/category/hindi-film-songs.html
www.yourdomain.com/music/category-1/hindi-film-songs.html
www.yourdomain.com/music/cat-1/hindi-film-songs.html
www.yourdomain.com/music/hindi-film-songs.html

and in these

www.yourdomain.com/music/hindi-film-songs/gangster.html
www.yourdomain.com/music/gangster.html
www.yourdomain.com/music/hindi-film-songs/detail-1.html
www.yourdomain.com/music/album/gangster.html

HTML:

Thanks in Advance

I Know you all are Experts in This Field ...

 

For the first set of URLs:
Both URLs give you same result...

For the second one:
I'll prefer www.yourdomain.com/music/hindi-film-songs.html

And for the last one
I'll go with www.yourdomain.com/music/album/gangster.html

 

Thanks Manish am Going to Use it but am thinking about this one for second

www.yourdomain.com/music/view-category/hindi-film-songs.html

HTML:

hows this ?

 

This could be fine..but www.yourdomain.com/music/hindi-film-songs.html this is pure SEO friendly as well as users also can remember it easily...

 

Ok dude i'm going to use it thanks very much manish

 

Its ok..best of luck...

 

The first one is second

Second and third one depends. Google remembers the categories and if it has crawled it knows that this kind of stuff is under that category.

Also, is there any difference in SEO (Please answer if you have tested it) if the file ends category/file.html or category/file/ or category/file

Thank you and sorry for posting my question in your thread. Thanks

 

This is an interesting topic. Would it make a difference if you used underscore instead of dashes?

 

www.yourdomain.com/music/hindi-film-songs.html
IS THE GOOD ONE

 

http://www.domain/%post-title%/ is the best