With the file extension DTS audio files are marked in the so-called Digital Theater Systems Format (DTS). It is a multi-channel format, which is mainly used on DVDs and BluRays. However, most of the files are not stored on the data carriers, but are stored inside the respective container (vob or evo). DTS is a proprietary, lossy compression method that supports resolutions up to 24 bits and sampling rates up to 96 kHz with different bit rates.
The DTS files can contain DTS sound at 768kbit or 1.5MBit. The former is mainly used on DVDs. The latter is a so-called DTS core, which is the lossy part of the DTS-HD standard.
Most often resolving problems with opening DTS files is very simple. Just install an appropriate program that supports such files. All of the listed programs support DTS files, but may vary in offered function and purpose. Some programs may be capable only of viewing contents of DTS files or offer file conversion options, but may not be capable of editing such files.
It is possible that although a compatible program has been installed on user’s system, it is not used by the system to open it. This may happen because no default application was associated with this type of files. To associate DTS files with given application, select "Open with" from drop-down menu (accessed by right-clicking on the file). Then select from the list the program or application you want to be used to open this type of file. If the iTunes applications is not on the list, select "Browse" option in order to manually locate the directory where iTunes has been installed.
Sometimes problems with opening DTS files may not lie with the application itself, but can arise due to other causes, such as: