The file sizes haven't changes, so all the data is still there...maybe something wrong with how the 10.2 update changed something in the OS?
MedaHUD gave me this for one of the clips:
General
Complete name : /Volumes/Media Edit RAID/Eastpoint Final Cut Library.fcpbundle/hopenow- children/Original Media/Clip #1.mov
Format : MPEG-4
Format profile : QuickTime
Codec ID : qt
File size : 715 MiB
Duration : 4mn 38s
Overall bit rate mode : Variable
Overall bit rate : 21.5 Mbps
Encoded date : UTC 2015-03-12 15:37:25
Tagged date : UTC 2015-03-12 15:37:32
Writing library : Apple QuickTime
com.panasonic.professionalplugin.p2.ess : 00000000
com.panasonic.professionalplugin.p2.cli : G3TDA0003
com.apple.proapps.clipID : 060A2B340101010501010D431300000080E7587B917005C60080458211272802
com.apple.proapps.originalFormat : AVCHD 1080p30
com.apple.proapps.reel : CAM_SD
com.apple.proapps.isGood : 0
com.apple.proapps.dataSize : Unknown kind of value!
com.apple.proapps.displayFormat : 1080p30
com.apple.proapps.shootingRate : Unknown kind of value!
com.apple.proapps.videoBitrate : 0
com.apple.proapps.pulldown : 1
com.apple.proapps.mediaRate : Unknown kind of value!
com.apple.proapps.timecodeFormat : 2
com.apple.proapps.numberOfAudioChannels : 2
com.apple.proapps.sampleRate : 48000
com.apple.proapps.bitsPerSample : 16
com.apple.quicktime.creationdate : 2015-03-10T11:53:55-0500
com.apple.proapps.lastupdatedate : 2015-03-10 11:58:34 -0500
com.apple.proapps.manufacturer : Panasonic
com.apple.proapps.serialno : G3TDA0003
com.apple.proapps.clipFileName : Clip #1
com.apple.proapps.RADSDKVersion : 3.1
com.apple.proapps.cameraID : Panasonic_G3TDA0003
com.apple.proapps.cameraName : CAM_SD
com.apple.proapps.ingestDate.descriptio : 2015-03-12 11:37:25 -0400
com.apple.quicktime.make : Apple
com.apple.quicktime.model : MacPro6,1
com.apple.quicktime.software : Mac OS X 10.10.2 (14C109)
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.0
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Format settings, GOP : M=3, N=15
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 4mn 38s
Bit rate mode : Variable
Bit rate : 20.0 Mbps
Maximum bit rate : 20.9 Mbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 29.970 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.321
Stream size : 662 MiB (93%)
Title : Core Media Video
Encoded date : UTC 2015-03-12 15:37:25
Tagged date : UTC 2015-03-12 15:37:32
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
Audio
ID : 2
Format : PCM
Format settings, Endianness : Little
Format settings, Sign : Signed
Codec ID : sowt
Duration : 4mn 38s
Source duration : 4mn 38s
Bit rate mode : Constant
Bit rate : 1 536 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Stream size : 51.0 MiB (7%)
Source stream size : 51.0 MiB (7%)
Title : Core Media Audio
Encoded date : UTC 2015-03-12 15:37:25
Tagged date : UTC 2015-03-12 15:37:32
Other
ID : 3
Type : Time code
Format : QuickTime TC
Duration : 4mn 38s
Time code of first frame : 01:37:18:19
Time code settings : Striped
Title : Core Media Time Code