Do one forget previous lives, like a 25yrs old cant remember his baby years?

[pappavis]

My question concerns the continuation of the current memory of that exact moment. If I die today today and reincarnate tomorrow, are memories are preserved ..?

issues;
1. How many of us can clearly remember that one did four days ago? At most glimspes, or do you get movie recall?
2. What *exactly* do you remember from the first 6 months of the current embodiment, if anything at all?
3. Is there a "scientific" way to proove, or research that shows transendence of consiousness between lifetimes?
4. Would it be possible to transform mass into this date of this planet, preserving memories?
 -> Say one living 1922 to 2011, then reincarnated in 2012 ..
5. Is there any culture, where the active memory to recall being taught as part of their culture?

[Astr4l]

I actually remember my baby days better then i remember yesterday or a week ago i dont know why

[Xanth]

Astr4l, do you happen to remember your dreams easily?

I believe that the "awareness" we have when we first come into this reality is more like an unconscious dream awareness experience. 
There's evidence that we do dream quite often while asleep, although we don't always remember or experience them... I think this same awareness we have while we're having a dream which we don't, in any way remember it, is the same kind of awareness we had when we were first born into this world.

It's just a theory. 

I view conscious awareness as a continuum between three possibilities (dream, lucid, astral) and an infinite range between those three.

[CFTraveler]

My question concerns the continuation of the current memory of that exact moment. If I die today today and reincarnate tomorrow, are memories are preserved ..?

issues;
1. How many of us can clearly remember that one did four days ago? At most glimspes, or do you get movie recall?

The conscious mind does not have movie recall (unless you have a photographic/eidetic memory, some people do).  However, the subconscious mind indeed does have movie recall- that's why it's possible, through hypnotherapy, to send people back in time to remember repressed memories.  Other experiments directly to the brain demonstrate this also.  A well-known scientist (whose name I have forgotten, will have to do some research) could induce memories in people by touching certain parts of the brain with electrodes.  One thing they learned is that certain regions had certain memories, and when you took the electrode away and touched the same region away, the memory would start at the beginning again, and keep going forward, as if you had 'rewound the tape'.  Interpret this as you wish.

2. What *exactly* do you remember from the first 6 months of the current embodiment, if anything at all?

I've already written this before, I'll have to find a link.

3. Is there a "scientific" way to proove, or research that shows transendence of consiousness between lifetimes?

I don't see how.  The brain processes memories (I won't say it stores them, because I don't think it does), and you are using a different brain in each incarnation, so the access points are different.  So if the brain is not involved, there can be no use of the scientific method- there is no falsifiability possible.

4. Would it be possible to transform mass into this date of this planet, preserving memories?
 -> Say one living 1922 to 2011, then reincarnated in 2012 ..

I don't know what this mean.  Transform mass into what, and preserve memories how?
Some people who are interested in metaphysics believe that everything that ever existed, exists or will exist in the timespace continuum is already recorded, in the Akashic Records.  There are a few ways to access them if it's for us to know.  The problem with future events is that everything is recorded, including possible futures of possible scenarios in the 'multiverse', so even if you are able to get the info there is no way to know that what you saw didn't come from the future movie, or a future possibility that doesn't come to pass.

5. Is there any culture, where the active memory to recall being taught as part of their culture?

No idea.