DOLl application creates [family] albums (your created album won't be usual but will include also sounds and texts, saved in one L file), simple animations or slide-show presentations, where picture, sound and text are synchronized with each other (see http://dol.vnurin.net/software.htm). DOLl works with L Objects.

As well as L files, L Objects consist of 3 Components (Picture, Sound and Text). Each Component is constructed from Units. There are two types of L Objects: Bound and Free.

Bound L Objects can be constructed from files (only not from LL files) and are hardly bound with that file. Any change in the Bound L Object in fact changes the file itself. Bound L Objects can be saved in L files.

Free L Objects can be constructed from LL files or from other L Objects, called parents. They have two kind of Units: own and not own. Unit is own means that the body of that Unit belongs to the Free L Object.

Not own Unit is the link to an appropriate Unit of the parent L Object. Free L Objects can be saved in L and LL files. It isn't recommended to save L Objects in LL files if involved files can be changed in the future.

Unit formats supported by this program: BMP, GIF, JPG, PNG, TIF, WAV, any ASCI[I] or Unicode text, L00[z], L01[z], L10[z], L0g[z], L1g[z], L1tz. Any L* file is L file too (L* files are the same L files, containing only one Unit of a single Component and having '.l*' extension).

There is nothing wrong to change the extension of an L* file into '.l' (but '.l*' extension says more about L file: gives the type of that single Unit).