How to hide some content in a post that rss subscribers can only see

This is my first Question in DP->Blogging Forum. before that i replied to queries.....

I can't find any plugin using which i can put some text+links with in a blog post hidden to all (the post is visible to all but that text is not) but visible in rss feeds i.e. rss feed subscribers can read those content. It will be like a contest which is exclusively for RSS Feed Subscribers only. I see some blog do it.

I don't want any feed customization plugins or related posts in feeds plugins as in these cases the feed special link will appear in all blogposts in feeds. But i want it to appear in post which i specify.

Blog platform - wordpress 2.2
Feed - feedburner

Thanx in advance for any help. Looking for it desperately.

 

I haven't seen how this is done exactly, but I'd like to know, so hopefully you get an answer

 

what i've found is that there's no plugin but an expert can say how is it done....

 

U can edit your RSS code to do that SATYA. So only those who read RSS will know.

I can do taht for u if u want

 

i've done that using post-post plugin but can it be done like feedcasting sending a post a complete post to feed readers only.....