modeling software, such as Blender or Metasequoia, to create the model and UV map, while the majority of conversion to the MMD platform (such as facial morphs, bones and physical bodies) is done with a program made exclusively for MMD model conversion, PMD Editor or its successor PMX editor. The software itself comes with a small number of models of well-known Vocaloids and an invisible grid, to which particle effects can be attached to in MME, a stage, some accessories, and two samples of what MMD can do, in the form of .pmm files; the file type that MMD projects are saved as. The software was originally only released in Japanese; however an English version was released at a later date. Videos using the software are regularly seen on sites such as Nico Nico Douga and YouTube and are popular among Vocaloid fans and users alike. A magazine which hands out exclusive models with every issue was also produced owing to this popularity. Some models for Vocaloid may also be used for Vocaloid music, going on to be used by studios working with the Vocaloid software. Many people also buy Windows100% magazines which give models exclusive to the public. These come out once every month and due to popularity, model creators are giving out secret models, as well as the models people have paid for. Most of these tend to be Vocaloid or models that do not have a particular copyright holder. On May 26, 2011, continual updating of the software came to an end and the last version was released. In a closing statement, the creator left the software in the hands of the fans to continue building upon. Despite this, the source code has not been released, and the developer has no intentions of doing so, making it impossible for people to continue building upon the original software. However, there are alternative programs that provide similar functionality, such as MikuMikuMoving (MMD's "replacement" that is updated frequently and has many of the features of MMD, as well as new file formats unique to the program, support for the Oculus Rift head-mounted display and a new UI, among other features), and the free software, Blender. Between then and now, there have been several additions to MMD version 7.39, mainly the addition of the x64 version, which runs better than the normal version and is designed to use the power of