I am trying to defrag my harddrive and a file that is said to be heavily defragmented is TF2K4_BasicMesh.bgl. This doesn't sound like an original MSFS file. Does anyone else have this in their scenery file? ThanksDavid

It's an addon mesh for Tibet and western China - part of "Tibet Flight 2004 by Bear Studios" - and is placed in the addon scenery folder with the afcad files by default.It's 253,717kb in size."Lod=9 76.2m mesh coverage from N25-N34 to E78-E100 - In this coverage, enhanced mesh covers all Tibet, Nepal, Bhutan, North part of India, Myanmar, Yunnan(China), Qinghai(China).Lod=8,152.4m mesh coverage from N34-N37 to E78-E100 - In this coverage, enhanced mesh covers Xinjiang (China) and Qinghai (China)."The scenery files with the AFCAD's built in are also named tfk24_????.bgl