RSS Channel Settings     

You can change the number of items that can be saved for a channel under RSS Channel.

If [Last 5 items] under [Item Save Options] is selected, the latest 5 items in the channel are saved. If the Memory Stick™ media or the system storage already contains items from the same channel, the latest 5 items will overwrite those items.

Latest item Saves only the latest item
Last 2 items Saves the last 2 items
Last 5 items Saves the last 5 items
Last 10 items Saves the last 10 items
All items Saves all items in the channel

Hint

For details on RSS Channel, see (RSS Channel) > [Saving content].