On Australian charts;
* 'A' STAR leads to an ILS.
* 'B' STAR leads to a VOR.
* 'D' STAR leads to an NDB.
* 'V' STAR leads to a Visual approach.
* 'Z' STAR leads to an RNAV/GNSS.
On NDB/VOR approaches an 'A' suffix refers to a non-runway aligned (circling) procedure.
On ILS approach an "X" suffix refers to CATII/III minima. A "Y" suffix refers to DME fixes using the airport VOR/DME and a "Z" suffix refers to DME fixes using the ILS/DME (except at YBBN19 when they're the wrong way around!).
I'm not RNP-AR approved, but I can only deduce the following;
* 'M' STAR leads to a unique RNP-AR (eg - YBBN19 'Quiet 1M' - Noise Abatement STAR).
* 'P' STAR is for use in VMC.
* 'U' STAR is for use in IMC.
At this time I believe only Qantas B738s, Jetstar A320/321s and Air New Zealand A320s are RNP-AR approach approved in Australia. Each of those airlines has had specific RNP-AR approach charts created for use off the end of the respective 'M', 'P' & 'U' STAR charts.
I don't think LIDO creates these charts. Certainly Navaerus and perhaps the Australian DAPs and Jeppesen too.
I'm happy to be corrected but I hope this all makes some sort of sense!
Allegedly.