DOSBox Raw OPL format
File type: Audio and sound file
A dro file extension identifies a DOSBox Raw OPL format file created by the DOSBox emulator.
A dro file stores captured OPL sound data from a game or other program running in DOSBox.
Found 3 different file type records with the same dro filename suffix.
File type category:
Audio and sound file
Date updated: October 26, 2026
DOSBox is a multi-platform emulator for IBM PC-compatible computers running the MS-DOS operating system. Its capture features can save the register data sent to the emulated OPL sound hardware.
The resulting DOSBox Raw OPL format file contains timed OPL register writes used to reproduce music and sound effects through OPL emulation. It is a sound-data recording rather than a conventional audio file containing sampled audio.
The format is mainly associated with DOSBox and software that supports DOSBox OPL recordings. On Microsoft Windows, Winamp with the AdPlug plugin can play dro files; DOSBox is also available for playback, as is aDosBox on Google Android.
On Microsoft Windows, open a dro file in Winamp with the AdPlug plugin installed. DOSBox can also be used with supported DRO playback features.
On Google Android, use aDosBox to play the file.
Compatible tools may export dro files to other formats. A dro file is not normally converted directly to a standard audio format because it contains OPL commands rather than sampled audio. Play it with a compatible OPL player or emulator and record the resulting sound with audio-recording software if an audio file is required.
Apps designed for playing dro files:
Microsoft Windows
Easily run DOS games and programs on your smart phone or tablet device with Google Android operating...
File type category:
Source code and script file
Date updated: November 29, 2017
Record marked as obsolete and not updated for a long time.
The dro file extension is related to D-Robots, a code-war game, robots are programmed in Delphi like programming language, available for Microsoft Windows operating system.
The dro file contains robot data.
Use D-Robots to work with *.dro files.
File type category:
Various data file
Date updated: October 26, 2026
Delphi is an integrated development environment from Embarcadero for creating programs for Microsoft Windows and other platforms. Its Object Repository stores reusable development objects, such as items used when creating Delphi projects and applications.
A dro file contains one of these repository objects. It is part of Delphi's repository system rather than a general-purpose document format, and is intended to be used by the Delphi development environment on Microsoft Windows.
Open the dro file with Delphi on Microsoft Windows. The file is intended for use through Delphi's Object Repository rather than as a standalone document.
Conversion to other formats is impossible. A dro file is a Delphi repository object, so its contents should be used or edited through Delphi's Object Repository instead of a general file converter.
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