Brain Sync really is a good brand which has been around a long time. I like "Ecstasy" best of all their products which I have tried.
There are MP3 files and then there are MP3 files. The important thing is the bitrate. The lower the bitrate, the lower the sound quality. Naturally you will want to keep it fairly high for music anyway, such as 192 kbits/second. Sometimes you will find streaming audio on the web which has binaurals which are encoded much lower. I can tolerate 64 kbits/second, but I don't bother with 12 or so. In general companies will tell you that encoding is bad because MP3 rips are so easy to share on the internet rather than because there is a problem with doing so ... and of course, they have no control over the settings you use. Some encoders mix the left and right channels, even, which defeats the purpose of listening with headphones.
So far the only subliminals which have made changes for me that I could really see in my life were the ones from
xtrememind.com. In particular, I have really enjoyed
Kundalini Activator and
Vanquisher Xtreme. They have some free items as well, which you can access from their home page. If you want to look through the catalog that also has a link from their home page. They offer free Kundalini Reiki attunements and I have heard good things about the attunements, but I had already received all nine elsewhere.
(I didn't use Bill Harris's subliminals and do not plan to. You can use
http://www.subliminal-power.com/mind/ to make your own "silent sound" subliminals. I suspect the idea is the same.)
This is the thread you probably want to review for creating your own holosync:
http://www.transparentcorp.com/community/forum/index.php?showtopic=2634It suggests getting the professional version of NP2, which I seem to recall isn't much more expensive than the "home" edition, because it gives you more options for modifying the settings. There are probably all sorts of other things that I missed. Like I said, I actually paid all that money for holosync (and now regret it).
If you are using binaurals for alpha and deeper, you have to close your eyes. For beta and up you can keep them open.
Scheduling has always been a problem for me. I meditate whenever I get a chance. It is better to have a lot of very short sessions every day than one big one every week or so. By short, I mean that even one or two minutes here and there is worth taking. This would be for traditional meditation, of course. With binaurals you need at least six minutes. If meditating in the morning works for you, great - it really gets the day off to a good start. If you want to meditate after work, great - it helps to get settled and to let go so you can enjoy your evening. If you want to meditate before you go to bed, you might have a bit of trouble with sleepiness during your meditation or insomnia after you meditate; I sometimes use binaurals and allow myself to fall asleep listening to them, because it makes my dreams more vivid and intense. Really, though, there isn't a bad time to meditate unless you are doing something like driving. Even then, if your meditation consists of keeping your eyes open and being aware of what you are doing while you are doing it, you can use that to help your driving. It is a good habit to get into anyway.
Sitting up straight is good for keeping yourself from just going to sleep. There are walking meditations as well, and it can be nice to alternate between sitting and walking so you can keep going longer without as much pain in your legs and back.
The reason for keeping your posture straight without being rigid is so that as your body relaxes the bones and joints will keep you from falling over. Even slouching puts pressure in odd places and it makes settling your thoughts and emotions more difficult.