Here's some info I cut and pasted from here:
http://www.techtronics.com/uk/shop/611-philips-cdr775-recordable-cd-players.htmlMain features
Dual Deck Audio CD-Recorder
Two separate CD decks (Recording + playback)
Double speed & Listen mode recording (disc)
2-disc simultaneous / random playback
Separate outs for CDR and CD (digital / analogue)
3 CD text features (recording, input & editing)
CD deck plays unfinalised RW discs
Sample Rate Conversion (12-56 kHz)
Direct Line Recording (DLR)
Records HQ-CD format (Via DLR only)
Analogue + digital (separate channel) record level
Continuous calibration (Running OPC)
Max. 99-track program on both decks
CD Sync auto start recording from all sources (disc)
Standby (via RC) + hard on/off
Music calendar
Easy log (Menu controlled user interface)
High quality starbust FTD (display)
Auto (un) finalise
Erasing per track, selection of last tracks whole disc
lntroscan
Tray blocking (dealer function)
Remote control
Connectors Analogue audio in/CDR and CD
Digital audio in/CDR and CD
Optical in
General
System CD digital audio (Dual deck audio Recorder + Player)
Number of Channels 2 (stereo)
Applicable discs CD, CD-R, CD-RW
Power supply AC 230V(/00)
Operating Temp. 5-35°C
Weight 4 kg
Dimensions 435(W)x305(D)x88(H) mm
Audio
Frequency response 20Hz-22.05kHz
Playback S/N 100dB
Playback dynamic range 95dB
Playback THD 88dB
Recording S/N Analogue 98dB
Recording S/N Digital equal to source
Recording dynamic range 92dB
Recording THD Quality 85dB
Headphones 0-3Vrms/8-2000 ohm
Output
1x Analog line o/p CDR(+CD) 2Vrms ?dB
1x Analog line o/p CD 2Vrms ?dB
1x Digital coaxial o/p CDR(+CD) 0.5vpp/75ohm
1x Digital coaxial output CD 0.5vpp/ohm
Input
Direct line rec. (bypass SRC) 44.1kHz ?00ppm.
1x Digital coaxial input (SRC) 12 - 56 kHz /0.5 vrms /75ohm
1x Digital optical input (SRC) 12 - 56 kHz
1x Analogue input 500mVrms/50kohm=0dB Recording functions
Recording on CD-R & CD-RW consumer audio discs
Recording from internal & external sources
Single and double speed recording (disc)
Auto Start Recording
Multi track erase (CD-RW disc)
Soft mute insert function
Erase disc (CD-RW disc)
Auto finalise / unfinalise disc (CD-RW disc)
Manual / Auto track increment
Remaining recording time display
Double speed finalising (writing TOC)
SCMS (Serial Copy Management System)
Auto analogue switch for protected tracks
RID Code Recorder Unique Identifier
Playback functions
Plays all Audio CDs
Simultaneous playback (recorder + player)
Introscan - Pause - Stop
Random playback from 2 discs
Direct track selection
Track selection with easy jog
Search forward/reverse
Repeat (all/1-track)
Program play (99 tracks from 2 discs)
Time display switching
Permanent text option
According to that...your cdr775 should be able to perform sample rate conversion (src). Whether or not the info is ALL correct...I can't say.
Now one other thing I see is that you have an optical in on the burner. You might be able to borrow or buy a coax>optical convertor, and send the optical signal in to see if that would work. Hope it works out for you.