Hello where can i buy Pioneer 115 or pioneer 216 IDE in uk can you please tell me any websites for uk

Well I assume you mean 115 or 116.
115 is becoming rare now.
SVP are popular with folk here. But are out of stock.
Try Scan
CCL Online

Whats better 115 or 116

Right now, the DVR-115D is better. The firmware is more mature. The DVR-116D needs to catch up. A lot of people have been disappointed with it’s initial results. However, the 115D has been discontinued, and will be much harder to find. So, you may have to get a 116D and wait for firmware updates to improve things.

Am from uk i found A 115 so am buying tht