FRAPS is different from BCL. Because BCL is integrated into main application unlike FRAPS.
See the table below. This is information of the captured video file.
BCL produces much smaller video file than FRAPS video. FRAPS video file size is 20 times bigger than BCL video file size.
===================================================================
File Information
-------------------------------------------------------------------
filename : BandiCapSample 2008-09-10 09-37-43-88.avi
file format : AVI
file size : 343,216,824 Byte (327.3 MB)
data size : 343,204,700 Byte (327.3 MB)
duration : 00:00:20 (20 Sec)
bit rate : 135.26 MBits/Sec
-------------------------------------------------------------------
Video Stream
----------------------------------------------------------------
codec : Fraps Real-Time Video Capture (FPS1)
image size : 1024 x 768 ( 1.33 : 1 )
bitrate : 133.84 MBits/Sec
frame per sec: 30.00 Frames/Sec
total frames : 609
-------------------------------------------------------------------
Audio Stream
------------------------------------------------------------------
codec : PCM AUDIO (0x0001)
bitrate : 1.41 MBits/Sec
sampling rate : 44,100 Hz
num of channels: 2 Channels (STEREO)
-------------------------------------------------------------------
Key Frame
---------------------------------------------------------------------
index status : Index exist
total keyframes : 609
average delta : 0.033 Sec
maximal delta : 0.033 Sec
minimal delta : 0.033 Sec
Standard deviation: 0.000 Sec
=========================[ By GomReader ]==========================
===================================================================
Basic Information
-------------------------------------------------------------------
filename : Capture 2008-09-10 09-37-43.avi
fileformat : AVI
file size: 16,452,884 Byte (15.7 MB)
data size : 16,406,460 Byte (15.6 MB)
duration : 00:00:20 (20 Sec)
bit rate : 6.46 MBits/Sec
-------------------------------------------------------------------
Video Stream
-------------------------------------------------------------------
codec : MPEG4 (MP4V)
image size : 1024 x 768 ( 1.33 : 1 )
bitrate : 5.67 MBits/Sec
frame per sec: 30.00 Frames/Sec
total frames : 611
-------------------------------------------------------------------
Audio Stream
-------------------------------------------------------------------
codec : PCM AUDIO (0x0001)
bitrate : 768.00 KBits/Sec
sampling rate : 24,000 Hz
num of channels: 2 Channels (STEREO)
-------------------------------------------------------------------
Key Frame
-------------------------------------------------------------------
index status : Index exist
total keyframes : 4
average delta : 5.411 Sec
maximal delta : 5.433 Sec
minimal delta : 5.400 Sec
Standard deviation: 0.016 Sec
=========================[ By GomReader ]==========================
Even though Bandi Capture Library uses a lossy compression, the video quality is almost the same as the original one.
See the pictures below. (This image is from captured video file, and converted to PNG format)
This shows CPU usage when capturing by FRAPS and BCL. (The following test results may be different depending on the test environment)
The CPU Usage before capturing.

The CPU Usage when capturing with FRAPS.

The CPU Usage when capturing with BCL.
