For example, you may expect to be able to hear all of the words and sentences on the CD-ROM, but only a few are actually recorded, or the sound quality may be poor. Also, you may find some programs are difficult to use, or you are not able to switch easily from one activity to another. In addition, on the web you can find user reviews of some software. Most programs can be used by absolute beginners and are often useful for a few weeks. A smaller number are also appropriate for more advanced learners.
Most programs are for teenagers and adults.
Generally, these programs are available for only the most commonly learned languages in North America. Programs differ considerably in content. Learning activities and other features. Use of English. Programs that focus on everyday language nearly all use English with the learner seeing the target language and the English equivalent simultaneously.