Google understands flash ?

does google understand flash sites ? or its better using metas only ?? one of my client needs info on this

 

Generally, yes, it does.
http://www.mattcutts.com/blog/google-gets-better-at-flash-with-adobes-help/
Though you still need content other than pure flash and some backup way of linking the pages too.
100% flash sites are too bad at SEO.

 

I agree with the above. You should not have a site that is entirely flash. Search engines look for content and sometimes miss most of it if it is all in flash. They say Google acknowledges flash sites, but how many flash sites have you seen on the first page of Google?

 

i never found any flash website on first page of Google SERP. I think Google read only links that is point to flash.