Files with the DRG extension are associated with the I-Doser application. DRG files are used by I-Doser as audio data. Playing them through the program aims to put the listener in a certain state (mood). From a technical point of view, this is a two-channel stereo material. However, many users are skeptical about the operation of this solution. Some consider it a scam.

I-Doser is a software and an online store. These are products by Nick Ashton.