Preferences General

General settings

Default render path

Enter a path name to set the directory for Rendered files (e.g. your Master Mix file). If you leave this field blank, Rendered files will be saved to the Project directory.

Undo Settings

Maximum undo memory use

Enter a value in this field to limit the amount of memory that REAPER will use for Undo memory. The default value is 30 MB. Set this value to 0 if you wish to disable the Undo function.

Create undo points for item/track selection

Deselect this check box to prevent REAPER from saving Undo points for Item and Track selection. This option, enabled by default, will create a new Undo point each time you select an Item or a Track.

Create undo points for loop selection

Deselect this check box to prevent REAPER from saving Undo points for Loop selection. This option, enabled by default, will create a new Undo point each time you create a Loop selection.

When approaching full memory, keep newest undo states

When your RAM starts running out, Reaper will throw out older undo memory and save the newer ones, if this box is checked.

Recent Project List

Maximum Projects in recent project list/Clear List

Here you can enter the number of projects displayed in the "recent project list" and you can also clear that list if you desire.

Startup Settings

Load last project on startup

Self Explanatory -- the last project you worked on before you closed will open upon Reaper's re-initialization.

Automatically check for new versions of REAPER

Deselect this option to prevent REAPER checking for new program updates once per day via the Internet.

Show splash screen on startup

This shows our cute little Reaper friend when the program initializes, but the program starts up so quickly it can be hard to catch: